Dr. Nurdin S.P, M.Si
Universitas Negeri Gorontalo, Agrotechnology, Faculty Member
- Associate professor of soil science at Gorontalo State Universityedit
Porang is becoming recognized as a strategic commodity due to its high demand and substantial economic value. However, the lack of a standardized set of site-specific land suitability criteria for porang presents challenges in conducting... more
Porang is becoming recognized as a strategic commodity due to its high demand and substantial economic value. However, the lack of a standardized set of site-specific land suitability criteria for porang presents challenges in conducting land suitability assessments and planning for its use. Therefore, this study addressed the knowledge gap by evaluating land suitability classes and the implications of land management for porang cultivation, using different parametric methods. A comprehensive survey of 32 land units was conducted, followed by soil analysis in the laboratory. The square root (SRM) and the Rabia and Terribile (RTM) parametric methods were employed for the land suitability assessment. Subsequently, the land management priorities were determined based on the results of the land suitability class analysis derived from both methods. The results showed that land suitability for porang plants with SRM and RTM was dominated by the very suitable class (S1), however, the distribution of S1 was wider with RTM. The remaining classes with SRM consisted of moderately suitable (S2), marginally suitable (S3), currently not suitable (N1), and permanently not suitable (N2), while the remaining classes with RTM only consisted of S1, S2, and S3 classes without class N. The priority of land management for porang plants for both parametric methods is dominated by priority I, however, in SRM there are priorities II, III, and NP (not priority), while in RTM, there are only II and III. Based on land suitability class and land management priority, RTM was still better than SRM.
Research Interests:
The lack of water availability and the short period of maize growth has the potential to be the main obstacles to achieving optimal production. Therefore, this research aimed to determine the water availability and long growth period... more
The lack of water availability and the short period of maize growth has the potential to be the main obstacles to achieving optimal production. Therefore, this research aimed to determine the water availability and long growth period (LGP) of maize plants in Boalemo Regency, which was included in the agrokilmat zone E2. Rainfall and temperature data from Saritani, Tangkobu, and Bubaa climate stations in Boalemo Regency were used over ten years, from 2012 to 2022. The soil profile moisture content data used pF 2.5 and pF 4.2 while the tool used Cropwat8.0. Furthermore, the determination of available water and LGP was conducted using a water balance table with the Thornwaite method. The results showed that the highest and lowest water availabilities were 556 mm and 118 mm at the Saritani and Tangkobu climate stations, with a maximum LGP of maize at 242 days and 181 days, respectively. Based on climate stations, the availability of water and the amount of LGP follow the pattern of Saritani climate station > Bubaa climate station > Tangkobu climate station.
Research Interests:
Maize has attracted the attention of local governments due to its high yield potential and economic prospects, but the strategic value of this commodity has not been specific to particular locations. Therefore, this study aimed to assess... more
Maize has attracted the attention of local governments due to its high yield potential and economic prospects, but the strategic value of this commodity has not been specific to particular locations. Therefore, this study aimed to assess degraded land suitability and determine the regional comparative advantages for maize development in the Gorontalo sustainable agriculture areas. The suitability class was assessed using Automatic Land Evaluation System software, while comparative advantages were determined using inputoutput and regional analysis. The input-output analysis was based on maize farming data from interviews with 80 farmers. This study also employed location quotient, specialization index, and localization index analyses based on maize, rice, and soybean production data for 2014, 2016, and 2018. The results showed that land degradation caused by soil erosion was dominated by moderate, heavy, and very heavy categories. Most of the actual land suitability for maize was classified as marginal suitable (S3) but became very suitable (S1) and moderately suitable (S2) after the limiting factors were improved. Furthermore, maize was profitable for the land suitability classes of S1, S2, and S3, and the commodity was most concentrated in Mootilango District. Based on the results, land management recommendations followed a pattern of recommendation I > II > III > not recommended.
Research Interests:
Rainfed paddy soils that are derived from lacustrine and include of E4 agroclimatic zone have many unique properties and potentially for paddy and corn plantations. This sreseach was aimed to: (1) study the soil development of rainfed... more
Rainfed paddy soils that are derived from lacustrine and include of E4 agroclimatic zone have many unique properties and potentially for paddy and corn plantations. This sreseach was aimed to: (1) study the soil development of rainfed paddy soils derived from lacustrine and (2) evaluate rainfed paddy soils potency for paddy and corn in Paguyaman. Soil samples were taken from three profiles according to toposequent, and they were analyzed in laboratory. Data were analyzed with descriptive-quantitative analysis. Furthermore, assessment on rainfed paddy soils potency was conducted with land suitability analysis using parametric approach. Results indicate that all pedon had evolved with B horizons structurization. However, pedon located on the summit slope was more developed and intensely weathered than those of the shoulder and foot slopes.The main pedogenesis in all pedons were through elluviation, illuviation, lessivage, pedoturbation, and gleization processes. The main factors of pedogenesis were climate, age (time) and topography factors. Therefore, P1 pedons are classified as Ustic Endoaquerts, fine, smectitic, isohypertermic; P2 as Vertic Endoaquepts, fine, smectitic, isohypertermic; and P3 as Vertic Epiaquepts, fine, smectitic, isohypertermic. Based on the potentials of the land, the highest of land suitability class (LSC) of land utilization type (LUT) local paddy was highly suitable (S1), while the lowest one was not suitable with nutrient availability as the limiting factor (Nna). The highest LCS of paddy-corn LUT was marginally suitable with water availability as the limiting factor (S3wa), while the lower LSC was not suitable with nutrient availabily as the limiting factor (Nna).
Research Interests:
This research aims to describe changes in the use of organic fertilizers in urban communities, both from the point of view of knowledge and behavior. This research was conducted in the period from February to April 2022. The population is... more
This research aims to describe changes in the use of organic fertilizers in urban communities, both from the point of view of knowledge and behavior. This research was conducted in the period from February to April 2022. The population is urban in Gorontalo Province, with a random sample of 172 people with various professional characteristics. The research variables include people's perceptions, knowledge, and behavior regarding using organic fertilizers. Data were analyzed using descriptive statistics. The results showed that 95.3% of the urban community's perception of a suitable type of fertilizer chose organic fertilizer over non-organic fertilizer, and from the aspect of knowledge, as much as 69.8% knew the benefits of using organic fertilizer, both for plants and the environment and economic benefits. From the behavioral aspect, 83.7% of people are used to using organic fertilizers, and 62.8% prefer to use organic fertilizers compared to other fertilizers. The market potential for organic fertilizer for urban communities in Gorontalo Province based on aspects of knowledge and behavior is relatively high so that marketing can target urban communities. Communities can use agricultural shops with good reputations or images to obtain or trade organic fertilizers.
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Lactuca sativa L. has good economic prospects, but lettuce production often declines due to the unmet water requirement of lettuce. This study aimed to determine the water needs of lettuce on Inceptisol and Vertisol based on the Internet... more
Lactuca sativa L. has good economic prospects, but lettuce production often declines due to the unmet water requirement of lettuce. This study aimed to determine the water needs of lettuce on Inceptisol and Vertisol based on the Internet of Things (IoT). The location study was in the green house, Huluduotamo Village, Bone Bolango Regency, from September to October 2021, while the Vertisol and Inceptisol samples were from Sidomukti Village, Gorontalo Regency. This study used the Penman method with the Cropwat 8.0 application which was integrated with a smartphone through the Blynk (IoT) application. The water requirement yield of lettuce plants in September on Vertisol and Inceptisol in the early phase was 2.45 mm/day, the middle phase was 3.73 mm/day, and the final phase was 3.54 mm/day. Soil moisture detection device at field capacity moisture content produces 319 Analog Digital Converter (ADC) and soil in moist conditions reaches 534 ADC. The analog data value of the water content of the Inceptisol field capacity is 343 ADC and the soil in a moist state is 574 ADC. The performance of the device for detecting soil moisture in the water condition of the 15% field capacity of Vertisol and 22% Inceptisol is more effective than the gravimetric method.
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Black soils store a high amount of soil organic carbon (SOC) and play a crucial role in climate change, food security, and land degradation neutrality. However, data and information regarding black soils in tropical regions, including... more
Black soils store a high amount of soil organic carbon (SOC) and play a crucial role in climate change, food security, and land degradation neutrality. However, data and information regarding black soils in tropical regions, including Indonesia, are limited. This study aimed to characterize and identify the utilization of black soils in Indonesia based on legacy soil survey data. We collated 142 soil pedon samples of Mollisols from articles, technical reports, and existing datasets. The site information (site position, elevation, land use type, parent material) and selected physicochemical properties were stored in a spreadsheet, from which exploratory data analysis was conducted. The result showed that the median SOC content was 1.53%, ranging from 0.6 to 8.2 %; cation exchange capacity was 30 cmol kg-1, ranging from 9 to 95 cmol kg-1; base saturation was 87%, ranging from 11 to 100 %; and bulk density was 1.21 g cm-3, ranging from 1.13 to 1.36 g cm-3. Other soil characteristics (particle size distribution, exchangeable bases, pH, pore, and water retention) varied with horizon type and land use/land cover. The black soils have been used for paddy fields, dryland farming, and gardens with low management intensity. Main cultivated crops include rice (Oryza sativa), corn (Zea mays), cassava (Manihot esculenta), sweet potato (Ipomoea batatas), and nutmeg (Myristica fragrans), clove (Syzygium aromaticum), coconut (Cocos nucifera), and cocoa (Theobroma cocoa). Threats to black soil functions include soil erosion, carbon loss, and nutrient imbalance. Soil and water conservation measures, integrated soil nutrient management, and agroforestry are among the best land management practices for black soils.
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Utilization of land resources requires information of the potential and limitations of land use so that the commodity that will be cultivated can achieve optimal yields. The aim of this study was to determine land suitability class of... more
Utilization of land resources requires information of the potential and limitations of land use so that the commodity that will be cultivated can achieve optimal yields. The aim of this study was to determine land suitability class of maize (Zea mays L.) of agriculture land in Popayato District, Pohuwato Regensy. This research was conducted from July 2022 to December 2022. Land suitability classes, both actual and potential, were determined based on the matching method between land characteristics of each land unit with the land suitability criteria for maize. The results showed that the actual land suitability class for maize in Popayato District was dominated by marginally suitable (S3 class) respectively at about 95.32% and not suitable (N class) about 4.68% of total area. Limiting factors consisting of class S3 includes: rainfall and humidity, soil depth, base saturation and pH, while the limiting factors in class N was soil depth. After improvement efforts were made, the potential land suitability class for maize plants became S3 class for all land units with an area of 3,587.37 ha.
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In Gorontalo Province, the Bulango Ulu irrigation area (D.I.) has the ability to build new paddy fields, although this potential is unknown, as is the level of soil fertility. The purpose of this study is to identify the variety of soil... more
In Gorontalo Province, the Bulango Ulu irrigation area (D.I.) has the ability to build new paddy fields, although this potential is unknown, as is the level of soil fertility. The purpose of this study is to identify the variety of soil chemical properties and the level of soil fertility in the area. Three steps make up the soil fertility status technique: collecting soil samples on-site using survey and land observation methods, analyzing soil samples in the lab while examining the variety of soil chemical properties, and calculating soil fertility status using the deskwork methods. With the use of ArcGIS version 10, the analysis's output a spatial map of the distribution of soil fertility status in D.I. Bulango Ulu in Gorontalo Province is provided. The findings indicated that D.I. Bulango Ulu, Gorontalo Province still has a poor diversity of soil chemical properties. The fertility of the local soil is likewise poor.
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Lahan kering merupakan salah satu agroekosistem yang berpotensi besar untuk usaha pertanian. Daerah aliran sungai (DAS) Limboto mempunyai lahan kering yang sesuai untuk pengembangan pertanian seluas 37.049 ha, sedangkan lahan datar sampai... more
Lahan kering merupakan salah satu agroekosistem yang berpotensi besar untuk usaha pertanian. Daerah aliran sungai (DAS) Limboto mempunyai lahan kering yang sesuai untuk pengembangan pertanian seluas 37.049 ha, sedangkan lahan datar sampai bergelombang yang potensial untuk pertanian 33.144 ha. Untuk memanfaatkan lahan kering tersebut, dapat diterapkan beberapa strategi dan teknologi yang meliputi: 1) pengelolaan sistem budi daya, yang mencakup pengelompokan tanaman dalam suatu bentang lahan mengikuti kebutuhan air yang sama, penentuan pola tanam yang tepat, pemberian mulsa dan bahan organik, pembuatan pemecah angin, dan penerapan sistem agroforestry, 2) pengembangan ekonomi, sosial, dan budaya melalui penyuluhan, penyediaan sarana dan prasarana produksi serta permodalan petani, pemberdayaan kelembagaan petani dan penyuluh, serta penerapan sistem agribisnis, dan 3) implementasi kebijakan yang berpihak kepada pertanian, yang meliputi pemberian subsidi kepada petani di daerah hulu untuk melaksanakan konservasi lahan, pemberian subsidi pajak kepada petani di daerah hulu, penetapan peraturan daerah yang berkaitan dengan pengelolaan lahan berbasis konservasi, dan pengelolaan lahan dengan sistem hak guna usaha (HGU). Hal lain yang terpenting dalam pemanfaatan lahan kering adalah sinkronisasi dan koordinasi antarinstitusi pemerintah dengan melibatkan petani untuk menghindari tumpang tindih kepentingan.
Research Interests:
Rainfed paddy soils that are derived from lacustrine and include of E4 agroclimatic zone have many unique properties and potentially for paddy and corn plantations. This sreseach was aimed to: (1) study the soil development of rainfed... more
Rainfed paddy soils that are derived from lacustrine and include of E4 agroclimatic zone have many unique properties and potentially for paddy and corn plantations. This sreseach was aimed to: (1) study the soil development of rainfed paddy soils derived from lacustrine and (2) evaluate rainfed paddy soils potency for paddy and corn in Paguyaman. Soil samples were taken from three profiles according to toposequent, and they were analyzed in laboratory. Data were analyzed with descriptive-quantitative analysis. Furthermore, assessment on rainfed paddy soils potency was conducted with land suitability analysis using parametric approach. Results indicate that all pedon had evolved with B horizons structurization. However, pedon located on the summit slope was more developed and intensely weathered than those of the shoulder and foot slopes.The main pedogenesis in all pedons were through elluviation, illuviation, lessivage, pedoturbation, and gleization processes. The main factors of pedogenesis were climate, age (time) and topography factors. Therefore, P1 pedons are classified as Ustic Endoaquerts, fine, smectitic, isohypertermic; P2 as Vertic Endoaquepts, fine, smectitic, isohypertermic; and P3 as Vertic Epiaquepts, fine, smectitic, isohypertermic. Based on the potentials of the land, the highest of land suitability class (LSC) of land utilization type (LUT) local paddy was highly suitable (S1), while the lowest one was not suitable with nutrient availability as the limiting factor (Nna). The highest LCS of paddy-corn LUT was marginally suitable with water availability as the limiting factor (S3wa), while the lower LSC was not suitable with nutrient availabily as the limiting factor (Nna).
Research Interests:
Te signifcant efect of land quality on maize production has not been fully considered in the existing land suitability criteria. Terefore, this study aims to determine land suitability criteria for hybrid maize in Boalemo Regency based on... more
Te signifcant efect of land quality on maize production has not been fully considered in the existing land suitability criteria. Terefore, this study aims to determine land suitability criteria for hybrid maize in Boalemo Regency based on the optimum yield and land quality. It was carried out in Boalemo Regency, Indonesia, where the land unit of 67 units was surveyed to obtain land characteristics data. A partial least square of structural equation model (PLS-SEM) with SmartPLS 8.0 was used to select a robust land quality controlling hybrid maize yield, while the boundary line method was used to determine optimum yield and differentiating of land suitability criteria. Te result showed that land qualities that defne the optimum yield of hybrid maize were root conditions, nutrient availability, nutrient retentions, land preparation, and erosion hazard. Te soil characteristics were efective depth, coarse material, organic C, total N, K exchangeable, slopes, soil erosion, rock outcrops, and surface rocks. Furthermore, the highest optimum yield of 8.54 ton/ha was achieved by the total N and slopes for a very suitable class (S1), while the lowest of 5.58 ton/ha was obtained by exchangeable K for class S1. Tis showed that the combination of PLS-SEM and boundary line analysis was a better approach to developing new land suitability criteria for hybrid maize.
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Jagung lokal varietas Motorokiki merupakan plasma nutfah Gorontalo yang dominan dibudidayakan pada lahan miring dengan produktivitas rendah. Penelitian ini bertujuan untuk mengetahui pertumbuhan dan hasil jagung lokal pada beberapa kelas... more
Jagung lokal varietas Motorokiki merupakan plasma nutfah Gorontalo yang dominan dibudidayakan pada lahan miring dengan produktivitas rendah. Penelitian ini bertujuan untuk mengetahui pertumbuhan dan hasil jagung lokal pada beberapa kelas kemiringan lereng dan dosis pupuk NPK, serta kombinasinya di Payu, Gorontalo. Penelitian ini menggunakan rancangan petak terbagi dengan petak utama kelas kemiringan lereng dan sub petak dosis pupuk NPK. Petak utama kelas lereng terdiri atas lereng datar (0-8%), bergelombang (8-15%), berbukit (15-35%) dan pegunungan (>35%), sedangkan anak petak dengan dosis pupuk NPK terdiri 0 kg ha-1 , 50 kg ha-1 , 100 kg ha-1, 150 kg ha-1 dan 200 kg ha-1. Parameter yang diukur meliputi tinggi tanaman, jumlah daun, umur berbunga jantan dan betina, panjang tongkol, dan bobot biji jagung. Data dianalisis dengan Duncan Multiple Range Test (DMRT) pada taraf 5%. Hasil penelitian menunjukkan bahwa pertumbuhan jagung dipengaruhi secara nyata oleh kelas kemiringan lereng dan dosis pupuk NPK dengan kombinasi terbaik kemiringan bergelombang dan dosis pupuk 50 kg ha-1. Hanya bobot biji jagung dipengaruhi secara nyata oleh kelas kemiringan lereng, sedangkan pemupukan NPK hanya pada umur berbunga jantan dan betina dengan kombinasi terbaik kelas kemiringan datar dan dosis pupuk 100 kg ha-1 .
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Waxy maize is a source of local food for the community so that it can achieve food security, but its availability is still low. In addition, the cultivation of waxy maize so far still relies on inorganic fertilizers that have the... more
Waxy maize is a source of local food for the community so that it can achieve food security, but its availability is still low. In addition, the cultivation of waxy maize so far still relies on inorganic fertilizers that have the potential to endanger public health. The purpose of this study was to analyze the growth and production of waxy maize, as well as to determine the effectiveness of agronomy and economy by applying organic fertilizer in Bualo Village, Boalemo Regency. The data obtained were designed in a randomized block design consisting of 11 treatments and 3 replications, so there were 33 experimental units. The results showed that the application of organic fertilizer of as much as 2,000 kg.ha-1 was able to increase the growth and production of the best waxy maize. Organic fertilizers, both agronomic and economical were classified as effective in increasing waxy maize production.
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Banana is one of the export commodities important, but most farmers were cultivated as a side commodity only. The objective of the study was to evaluate the land suitability for banana development and its limiting factors. This study was... more
Banana is one of the export commodities important, but most farmers were cultivated as a side commodity only. The objective of the study was to evaluate the land suitability for banana development and its limiting factors. This study was done with four stages, i.e: data collection, laboratory analysis, data compilation, and data interpretation. Land suitability analysis using matching approach and tools of geographical information system (GIS) software. Determining of land suitability classes using FAO (1976) framework of land evaluation. The result shown that land suitability for banana was classified as suitable (N) widely of 204,696.99 ha, and widely of 13,999.53 ha of not suitable (N). The limiting factors for banana development were erosion hazard, water and oxygen availability, and roots condition.
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Coffee is a national strategic commodity that contributes to Indonesia’s foreign exchange, but its productivity remains low due to cultivation on low potential land. This study aimed to determine the land suitability of endemic liberica... more
Coffee is a national strategic commodity that contributes to Indonesia’s foreign exchange, but its productivity remains low due to cultivation on low potential land. This study aimed to determine the land suitability of endemic liberica coffee using two different methods and formulate recommendations for land management in Pinogu Plateau. Thirteen land units were surveyed, and soil samples were collected and analyzed in the laboratory to identify the land characteristics. Land suitability classes (LSCs) were compared by limiting factor and parametric methods. Analysis using the limiting factor method showed that the actual LSCs for liberica coffee consisted of moderately suitable (S2) and marginally suitable (S3) classes. Efforts for improvement could increase the potential of LSC to became very suitable (S1) and S2 classes. Meanwhile, the assessment with the parametric method indicated that the LSC consisted of S1, S2, and S3 classes. These results revealed that the parametric method provides more realistic land characteristics than the limiting factor method. Land management II or the land that had a little limiting factor turned out to be more dominant with the recommendation of adding P and organic fertilizer.
Research Interests:
Iloponu Village has the potential for agrobiopharmaceutical development, but has not been developed optimally. The development of agrobiopharmaceuticals is not only beneficial for health but has economic value that can increase people's... more
Iloponu Village has the potential for agrobiopharmaceutical development, but has not been developed optimally. The development of agrobiopharmaceuticals is not only beneficial for health but has economic value that can increase people's income. Biopharmaceutical plants such as eucalyptus have the potential to become land conservation plants. This service activity aims to conduct field observations of problems and alternative solutions by implementing participatory technology development and community development, as well as making persuasive and educational efforts to the community in the development of agrobiopharmaceuticals based on land conservation in Iloponu Village. This community service activity uses the following methods: (1) field observation, (2) participatory technology development, (3) community development through training and mentoring, (4) persuasively by jointly building bioprime holes, and (5) educative through the planting of eucalyptus plants together. The development of agrobiopharmaceuticals in the form of making local community medicinal gardens is carried out in locations with priorities for Dusun II, III and IV (priority 1) and Hamlet I (priority 2). Community knowledge and skills increased by more than 80%. Efforts to conserve land based on agrobiopharmaceuticals are carried out together with the community by making biopore holes and planting eucalyptus plants. Field observations help identify problems and set priorities for land conservation-based agrobiopharmaceutical development activities, while participatory technology development has resulted in local community medicine gardens and community development has increased the knowledge and skills of residents in
agrobiopharmaceutical development. Persuasive efforts have been carried out by making biopore holes in the yard and agricultural land, while public education has been carried out by planting eucalyptus plants in Iloponu Village.
agrobiopharmaceutical development. Persuasive efforts have been carried out by making biopore holes in the yard and agricultural land, while public education has been carried out by planting eucalyptus plants in Iloponu Village.
Research Interests:
Ten representative pedons from the Bulia micro watershed of Gorontalo Province, Indonesia, were characterized and classified to determine its land quality (LQ) class. Angular blocky, sticky, plastic consistencies and a hard consistency... more
Ten representative pedons from the Bulia micro watershed of Gorontalo Province, Indonesia, were characterized and classified to determine its land quality (LQ) class. Angular blocky, sticky, plastic consistencies and a hard consistency prevailed in the soil structure. In the alluvial plains the soil texture is dominated by the clay fraction, while in the hills and volcanic mountains the sand fraction is dominated. The soils in the Bulia micro watershed also have acid to neutral reaction, with the range of very low to the volcanic mountains were the LQ class IV, while the land on the volcanic hills was categorized as the LQ class VI. River bank erosion on the land river terraces can be held by the manufacture of gabions, talud, cliff reinforcement plants and terraces. The soil temperatures and high clay content can be regulated by mulching and organic materials.
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Provision of organic fertilizers was done as an alternative to reduce dependence on inorganic fertilizers, even though they were substantive in nature. Apart from being one of the solutions to the scarcity of subsidized fertilizers, it... more
Provision of organic fertilizers was done as an alternative to reduce dependence on inorganic fertilizers, even though they were substantive in nature. Apart from being one of the solutions to the scarcity of subsidized fertilizers, it was also an effort to increase agricultural production, as well as protect the plant environment from pollution and maintain soil fertility. The production of organic fertilizers from local agricultural waste has been proven and successfully carried out by farmer groups based on visual criteria that are finetextured, black in color and smell of soil. Testing of the nutritional content of organic fertilizers has been carried out and the results prove that the minimum technical requirements for solid organic fertilizers have been met, so that larger scale production can be carried out by farmer groups. To follow up on this activity, suggestions that need to be made include: (a) the potential for agricultural waste from sugarcane and oil palm plantations that has not been used in the manufacture of organic fertilizers can be used as raw material, so that it will enrich the nutritional content and the novelty of this organic fertilizer; (b) the need for licensing for the production of organic fertilizer for farmer groups requires assistance from the instant dan associated with these authority dan regulation; and (c) the need for good and attractive packaging, so that it will market-oriented.
Research Interests:
Lettuce (Lactuca sativa L.) is a vegetable that has high economic value and beneficial for health but in its cultivation, there are still obstacles, especially related to the plant water needs and dosage of fertilizer. This study aims to... more
Lettuce (Lactuca sativa L.) is a vegetable that has high economic value and beneficial for health but in its cultivation, there are still obstacles, especially related to the plant water needs and dosage of fertilizer. This study aims to examine the growth and yield of lettuce and the interaction between water and fertilizer application time intervals in Tilote Village, Gorontalo District. This research was carried out in an acclimatization room using a randomized block design with two factors, namely the water supply interval factor (interval 2 days-A1, interval 3 days-A2) and the second factor fertilizer dosage (50 kg ha-P1, 100 kg/ha-P2). Growth parameter data (plant height, number of leaves, leaf length and leaf width) as well as plant yield (wet weight, leaf weight and percentage of leaf weight to base weight) were analyzed by ANOVA and further tested with the DMRT test at 50% level. The results showed that the water supply interval and the dosage of fertilizer has significantly affect to growth and yield of lettuce. There were an interaction between the water supply interval and the dose of fertilizer that affects the growth and yields of lettuce with the best combination were interval of 2 days and fertilizer dosage of 100 kg/ha.
Research Interests:
ertanian merupakan sektor penyedia pangan yang tidak pernah lepas dari berbagai persoalan, baik persoalan ekologi, ekonomi, sosial dan budaya, bahkan persoalan kebijakan politik. Hal ini tidak berlebihan karena pangan adalah kebutuhan... more
ertanian merupakan sektor penyedia pangan yang tidak
pernah lepas dari berbagai persoalan, baik persoalan
ekologi, ekonomi, sosial dan budaya, bahkan persoalan
kebijakan politik. Hal ini tidak berlebihan karena pangan adalah
kebutuhan pokok penduduk, terutama di Indonesia. Laporan BPS
tahun 2010 menunjukkan bahwa jumlah penduduk Indonesia sudah
mencapai 237,641,326 jiwa atau meningkat sebesar 15,21% dari tahun
sebelumnya. Kondisi ini membutuhkan ketersediaan pangan yang
cukup agar tidak menjadi salah satu penyebab instabilitas pangan
nasional. Dalam rangka pemenuhan kebutuhan pangan terutama
mempertahankan sekaligus meningkatkan produksi pangan, pada
level lapangan masih banyak hambatan dan kendala yang dijumpai.
Dari sekian banyak hambatan dan kendala tersebut, ada yang dapat
ditangani melalui introduksi teknologi dan upaya strategis lainnya,
tetapi ada pula yang sukar untuk ditangani terutama yang berkaitan
dengan fenomena alam.
pernah lepas dari berbagai persoalan, baik persoalan
ekologi, ekonomi, sosial dan budaya, bahkan persoalan
kebijakan politik. Hal ini tidak berlebihan karena pangan adalah
kebutuhan pokok penduduk, terutama di Indonesia. Laporan BPS
tahun 2010 menunjukkan bahwa jumlah penduduk Indonesia sudah
mencapai 237,641,326 jiwa atau meningkat sebesar 15,21% dari tahun
sebelumnya. Kondisi ini membutuhkan ketersediaan pangan yang
cukup agar tidak menjadi salah satu penyebab instabilitas pangan
nasional. Dalam rangka pemenuhan kebutuhan pangan terutama
mempertahankan sekaligus meningkatkan produksi pangan, pada
level lapangan masih banyak hambatan dan kendala yang dijumpai.
Dari sekian banyak hambatan dan kendala tersebut, ada yang dapat
ditangani melalui introduksi teknologi dan upaya strategis lainnya,
tetapi ada pula yang sukar untuk ditangani terutama yang berkaitan
dengan fenomena alam.
Research Interests:
Increase national maize production has not been followed by an increase in maize productivity per unit area because maize was grown on land that was not suitable with these land quality. This study aims to determine the land quality that... more
Increase national maize production has not been followed by an increase in maize productivity per unit area because maize was grown on land that was not suitable with these land quality. This study aims to determine the land quality that control of local maize production. This research was conducted at the Gorontalo Regency. A total of 33 mapping units had been established containing data of soil properties, climate and terrain divided into land quality, as well as data of local maize production. A partial least square of structural equation models (PLS-SEM) analysis was used to determine the land quality and characteristics that control of local maize production through testing the validity and reliability of variables, as well as testing structural models. The results showed that the all manifest variables were valid and able to explain well the latent variables, except for texture, cation exchange capacity, and base saturation. Furthermore, the latent variables temperature, water availability, oxygen availability, nutrient retention, nutrients availability, sodicity, erosion hazard, flood hazard, and land preparation used has good composite reliability and high reliability because of the composite reliability and alpha cronbach >0.6, except for rooting media. Land quality that control of the local maize production were the oxygen availability (X1), rooting media (X2), nutrient retention (X3), nutrients availability (X4), erosion hazard (X5), and land preparation (X6) with the best equation: Y = 1.805 + 0.276X1 + 0.303X2 + 0.353X3 + 0.346X4 - 0.337X5 - 0.303X6. The land characteristics that control of the local maize production were drainage (X1), coarse material (X2), effective depth (X3), pH KCl (X4), C-organic (X5), total N (X6), available K (X7), slope (X8), soil erosion (X9), surface rock (X10) and rock outcrop (X11) with the best equation: Y = 2.447 + 0.187X1 - 0.212X2 + 0.153X3 + 0.349X4 + 0.166X5 + 0.169X6 + 0.313X7 - 0.352X8 - 0.230X9 - 0.237X10 - 0.187X11.
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Desa Huntu Barat merupakan suatu kawasan yang secara geografis terletak berdekatan dengan Kota Gorontalo dan pusat ibukota Kabupaten Bone Bolango. Berdasarkan data Dinas Kesehatan Provinsi Gorontalo, Kota Gorontalo dan pusat ibukota... more
Desa Huntu Barat merupakan suatu kawasan yang secara geografis terletak berdekatan dengan Kota Gorontalo dan pusat ibukota Kabupaten Bone Bolango. Berdasarkan data Dinas Kesehatan Provinsi Gorontalo, Kota Gorontalo dan pusat ibukota Kabupaten Bone Bolango telah ditetapkan sebagai zona merah dan zona kuning penyebaran wabah Covid-19 sehingga hal tersebut berimbas terhadap tingginya resiko penyebaran Wabah Covid-19 di Desa Huntu Barat. Di sini yang lain, Desa Huntu Barat memiliki potensi pengembangan komoditas hortikultura sebesar 78,62% (BPS Kabupaten Bone Bolango, 2020) yang harus dioptimalkan agar tetap dapat menjadii sumber ketahanan pangan. Kegiatan ini bertujuan untuk meningkatkan pengetahuan dan ketrampilan petani dalam pemanfaatan lahan kosong dan pekarangan rumah untuk pengembangan hortikultura di masa pandemi Covid-19. Metode pengabdian masyarakat yang digunakan adalah pemberdayaan petani dan ibu PKK melalui perencanaan pengembangan komoditas, pendampingan pemanfaatan lahan kosong, pembuatan sarana dan prasarana budidaya tanaman di pekarangan rumah, sekaligus sosialisasi dan penerapan protokol kesehatan Covid-19. Hasil yang diperoleh menunjukkan bahwa pelaksanaan program KKN Covid-19 di Desa Huntu Barat melalui kegiatan pemanfaatan lahan kosong dan pekarangan rumah tangga telah menghasilkan perencanaan pengembangan komoditas hortikultura, memanfaatkan lahan kosong untuk budidaya tanaman hortikultura, menghasilkan sarana dan prasarana budidaya hortikultura di pekarangan rumah, serta telah berhasil mensosialisasikan dan menerapkan protokol kesehatan Covid-19. Sebagai tindak lanjut dari kegiatan ini, maka disarankan perlunya pendampingan terus menerus kepada kelompok tani hortikultura dan ibu PKK baik oleh penyuluh pertanian maupun perguruan tinggi agar pengembangan komoditas hortikultura dapat berjalan secara berkelanjutan, perlu adanya ajang kompetisi dalam pembuatan gazebo dan diberikan reward agar motivasi warga dalam memanfaatkan pekarangan semakin meningkat, dan perlunya pendampingan penerapan protokol kesehatan di masa Pandemi Covid-19 sampai pada skala rumah tangga.
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Limbah pertanian, terutama jerami jagung (tebon) yang sangat melimpah dapat dimanfaatkan sebagai bahan baku pakan silase, tetapi masih banyak petani yang belum tahu dan belum bisa untuk membuat pakan silase tersebut. Kegiatan pengabdian... more
Limbah pertanian, terutama jerami jagung (tebon) yang sangat melimpah dapat dimanfaatkan sebagai bahan baku pakan silase, tetapi masih banyak petani yang belum tahu dan belum bisa untuk membuat pakan silase tersebut. Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan pengetahuan dan ketrampilan petani dalam pembuatan pakan silase di Kelompok Tani Rukun Sejahtera Desa Bualo Kecamatan Paguyaman Kabupaten Boalemo. Guna mencapai tujuan tersebut, maka metode pengabdian masyarakat yang digunakan adalah metode pelatihan dengan teknik ceramah dan tanya jawab, metode praktikum dan pendampingan kepada peserta, serta metode survei menggunakan instrumen kuisioner untuk menilai pengetahuan dan ketrampilan peserta dalam pembuatan pakan silase. Hasil yang diperoleh menunjukkan bahwa pelaksanaan kegiatan pelatihan dan praktek pembuatan pakan silase terbukti telah mampu memberikan peningkatan pada pengetahuan dan ketrampilan masyarakat, terutama petani tentang pakan silase dan pembuatannya. Tingkat pengetahuan petani tentang pakan silase sebelum pelatihan dilakukan mayoritas peserta pelatihan (94,4%) tidak tahu dan sangat tidak tahu tentang pakan silase. Setelah mengikuti kegiatan pelatihan, maka mayoritas peserta pelatihan (99,2%) sudah tahu dan sangat tahu tentang pakan silase. Tingkat ketrampilan petani setelah mengikuti praktek dan pendampingan pembuatan pakan silas, mayoritas (90,4%) sudah bisa dan terampil dalam membuat pakan silase. Guna tindak lanjut dari kegiatan ini, maka perlunya pendampingan terus menerus kepada kelompok tani baik oleh penyuluh pertanian maupun perguruan tinggi agar limbah jagung dan limbah pertanian lainnya dapat dimanfaatkan sebagai pakan silase; dan (perlunya pengkayaan bahan pakan silase agar kandungan nutrisi pakan silase ini lebih lengkap (komplit).
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The challenge of composite maize developing in the future is the low productivity because the maize is grown on land that is not suitable for land quality. This study aims to determine the land quality and land characteristics that... more
The challenge of composite maize developing in the future is the low productivity because the maize is grown on land that is not suitable for land quality. This study aims to determine the land quality and land characteristics that control the composite maize productivity in Gorontalo Province. A total of 33 land units were surveyed and their land observed to obtain data on morphology and soil characteristics, climate and terrain characteristics, as well as composite maize productivity data through ubinan plots and direct interviews with maize farmers. Partial least square of structural equation models (PLS-SEM) analysis has been used to determine the land quality and land characteristics that control the composite maize productivity through variable validity and reliability tests, as well as structural model tests. The results showed that the manifest variables were air temperature, rainfall, wet months, dry months, LGP, drainage, coarse materials, effective depth, pH H2O, pH KCl, C-organic, total N, available P, available K, ESP, slopes, soil erosion, inundation height, inundation time, surface rock, and rock outcrops were valid and able to explain well the latent variables. Furthermore, the latent variables were temperature, water availability, oxygen availability, nutrient retention, nutrients availability, sodicity, erosion hazard, flood hazard, and land preparation used has good composite reliability and high reliability because of the composite reliability and alpha cronbach >0.6. Land quality that controls the composite maize productivity based on the order of importance were nutrient retention, rooting media, land preparation, and nutrients availability. Meanwhile, land characteristics that control the composite maize productivity based on the order of importance were pH KCI, coarse material, rock outcrops, effective depth, surface rock, available K, and soil texture. Soil texture, effective depth, pH KCI, and available K has a positive relationship and has a significant to very significant effect on the composite maize productivity, while the content of course materials, surface rock, and rock outcrops has a negative relationship and has a significant effect on the composite maize productivity.
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Maize cultivation has been carried out on the mountainous slopes with high fertilizer inputs, but maize productivity is still low. This study investigates the effect of slope and NPK compound fertilization as well as the best combination... more
Maize cultivation has been carried out on the mountainous slopes with high fertilizer inputs, but maize productivity is still low. This study investigates the effect of slope and NPK compound fertilization as well as the best combination of growth and yield of local maize, relative agronomic effectiveness (RAE) percentage and economic fertilizer effectiveness (EFE) ratio in Inceptisol Bumela Indonesia. Slope variations (0-8, 8-15, 15-35, >35%) are combined with compound NPK fertilizer levels (0, 50, 100, 150, 200 kg ha-1) with split plot design. Growth data was recorded for changes in plant height and leaves number from 7 DAP to 42 DAP, while yield and yield components are recorded at harvest. The results showed that slope and NPK compound fertilization can increase the growth and yield of maize plants. The combination of flat slopes and fertilizer level of 100 kg ha-1 was the best combination in increasing plant height and the leaves number, accelerate the age of male and female flowering flowers, cob weight, grain yield and percentage of cob weight to grain yields. This combination was also able to increase the percentage of RAE, the ratio of EFE subsidized and non-subsidized. If farmers will continue to cultivate maize on the sloping land, it was recommended to arrive at hilly land with a fertilizer level of 100 kg ha-1 only.
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This paper aims to assess the risk and action of climate change adaptation of specific food security sectors in Boalemo Regency based on the Minister of Environment and Forestry Regulation of the Republic of Indonesia Number... more
This paper aims to assess the risk and action of climate change adaptation of specific food security sectors in Boalemo Regency based on the Minister of Environment and Forestry Regulation of the Republic of Indonesia Number P.33/MENLHK/Setjen/Kum.1/3/2016 on Guidelines for Climate Change Adaptation Action Formulation. Climate change is a necessity and has happened this earth. The impact of climate change on national food security occurs coherently, ranging from negative effects on resources (land and water), agricultural infrastructure (irrigation), to production systems through decreasing productivity, planting area and harvest. On the other hand, farmers have limited resources and ability to adapt to climate change. This requires concrete action by all stakeholders collectively in addressing the issue of climate change impacts. It is proposed to the District Government of Boalemo to address local climate change events with prioritization of adaptation options based on consideration of resource availability and constraints on the implementation of each adaptation option, including:
(1) building of embungs, reservoirs and bending, drip irrigation, mulch, (2) development of draenase, improvement of irrigation, (3) adaptive seed breeding, use of organic fertilizer, (4) utilization of biopesticides, (5) alternative animal feeding training, and (6) consultation with mantri, animal age recording and calculation feed requirement. These efforts will be more useful if the rate of climate change does not exceed the ability to adapt. Anticipation and adaptation efforts need to be balanced with mitigation, ie efforts to reduce the source and increase the sink (absorber) of greenhouse gases.
(1) building of embungs, reservoirs and bending, drip irrigation, mulch, (2) development of draenase, improvement of irrigation, (3) adaptive seed breeding, use of organic fertilizer, (4) utilization of biopesticides, (5) alternative animal feeding training, and (6) consultation with mantri, animal age recording and calculation feed requirement. These efforts will be more useful if the rate of climate change does not exceed the ability to adapt. Anticipation and adaptation efforts need to be balanced with mitigation, ie efforts to reduce the source and increase the sink (absorber) of greenhouse gases.
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The research was aimed to study effect application of sea sand (SS), coconut coir (CC) and banana coir (BC) on the growth and yield of rice (Oryza sativa L.) planted at Ustic Endoaquert soil. The pot experiment was carried out using a... more
The research was aimed to study effect application of sea sand (SS), coconut coir (CC) and banana coir (BC) on the growth and yield of rice (Oryza sativa L.) planted at Ustic Endoaquert soil. The pot experiment was carried out using a factorial design with 3 factors. The first factor was SS consisted of three levels i.e.: 0%, 25%, and 50%. The second and third factors were CC and BC, each consisted of three levels i.e.: 0, 10, and 20 Mg ha-1. Application of SS and BC significantly increased leaf length where the highest increasing percentage was 16.47% which was achieved at 25% SS application. Their effect on leaf numbers and tiller numbers were relatively not similar pattern where leaf number only increased about 65.52% by BC application, while tiller numbers only increased about 10.77% by SS application. Furthermore, the application of CC and BC significantly increased panicle numbers to 29.53% and 29.05%, respectively compared to control. All ameliorants significantly increased panicle numbers, but the best was CC with the increasing up to 46.49% at 20 Mg ha-1 CC compared to SS or BC application. However, only coconut coir significantly increased the rice grain numbers
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National rice production needs to be improved and maintained to meet the demands of fast growing population. One of the ways to meet this demand is through cultivating the rain fed land in many areas which its physical characteristics are... more
National rice production needs to be improved and maintained to meet the demands of fast growing population. One of the ways to meet this demand is through cultivating the rain fed land in many areas which its physical characteristics are challenging factor. This research aims at finding out the feedback of the rice production on the calcium fertilizer following the administration of river sand, beach sand, coco peat, and banana peat in ustic endoaquert. This research is implemented in rain fed field composed of vertisol soil in Sidomukti village of Mootilango Gorontalo, Indonesia. The subjects are randomly chosen and the treatments are separately implemented in two subgroup of vertisol soil. There are five treatments that were repeated three times, thus, there are 15 pieces of trials in each sub-vertisol groups. This research reveals that the administration of K fertilizer following the administration of river sand, beach sands, coco peat, and banana trunks fiber has significant effect on the number of grain, the weight of 1000 grains and the total weight of the grains. Meanwhile, the administration of K fertilizer following the administration of beach sand, coco peat and banana peat has significantly influenced the number of stalk, the length of stalk, and the total weight of the grains. To cite this article: Zakaria F and Nurdin, 2016. Increasing rice productivity by manipulation of calcium fertilizer in Ustic Endoaquert. Res. Agric. Livest. Fish. 3 (1): 15-26.
Research Interests: Soil Science and Agronomi
This study aims to determine the soil mineralogy and soil chemical properties at two rainfed soil pedons in Sidomukti, Gorontalo. This study was conducted at 2 pedon of rainfed paddy soils from Sidomukti Village Mootilango District of... more
This study aims to determine the soil mineralogy and soil chemical properties at two rainfed soil pedons in Sidomukti, Gorontalo. This study was conducted at 2 pedon of rainfed paddy soils from Sidomukti Village Mootilango District of Gorontalo Regency. Implementation of the field based on the location of the example profile (pedon). The soil profile is made and sampled in accordance with the principles of soil surveying. Result of this research showed that Pedon PNS1 had easily weathered minerals (albite, sanidin and green hornblende) more than pedon PNS2. While the clay mineral content of pedon PNS1 dominated by smectite and kaolinite. Both pedon generally pH slightly acid to slightly alkaline
and negatively charged clean, C-organic content is very low, bases-dd predominantly calcium (Ca-dd) with the sequence: Ca> Mg> K> Na, cation exchange capacity and base saturation dominant high and very high. However, the pedon PNS1 was better than pedon PNS2 of soil fertility.
and negatively charged clean, C-organic content is very low, bases-dd predominantly calcium (Ca-dd) with the sequence: Ca> Mg> K> Na, cation exchange capacity and base saturation dominant high and very high. However, the pedon PNS1 was better than pedon PNS2 of soil fertility.
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The Inceptisols has potential for upland agriculture, but it has problems in the field. Identification and soil characterization was need for mismanagements. Research aimed to identify the Inceptisols characteristic derived from... more
The Inceptisols has potential for upland agriculture, but it has problems in the field.
Identification and soil characterization was need for mismanagements. Research aimed to identify the Inceptisols characteristic derived from lacustrine as based of soil managements. Two pedons from Paguyaman of Gorontalo Province were studied both in field and in the laboratory. Twelve soil samples were analyzed for physical and chemical properties. The result of this research showed that the soil morphology of Paguyaman Inceptisols has horizon of arrangement was Ap-Bw and Ap-Bw-Br with different soil depts. Soil matrix color of two pedons dominantly of brown that indicated of B cambic horizon has formed but has not argillic horison. All pedon finded of ocrich epipedons, therefore the soil classify as Typic Eutrudept, fine loamy, smectitic, isohypertermic (PLKS) and Typic Eutrudept, fine, smectitic, isohypertermic (PLKM). Inceptisol was forming way of pedoturbation and lessivage process where done clay and C-organic movements, ground water finded in 100 cm soil depts to half time in a years and base saturation ≥ 60%. This Inceptisol has loamy of textures, acid until alkalis of soil pH, moderately of nutrient stock and cation exchange capacity moderate until high value. These carracteristics indicated that this soil has potential for food crop cultivations. Therefore, the pedon PLKM more potential than pedon PLKS
Identification and soil characterization was need for mismanagements. Research aimed to identify the Inceptisols characteristic derived from lacustrine as based of soil managements. Two pedons from Paguyaman of Gorontalo Province were studied both in field and in the laboratory. Twelve soil samples were analyzed for physical and chemical properties. The result of this research showed that the soil morphology of Paguyaman Inceptisols has horizon of arrangement was Ap-Bw and Ap-Bw-Br with different soil depts. Soil matrix color of two pedons dominantly of brown that indicated of B cambic horizon has formed but has not argillic horison. All pedon finded of ocrich epipedons, therefore the soil classify as Typic Eutrudept, fine loamy, smectitic, isohypertermic (PLKS) and Typic Eutrudept, fine, smectitic, isohypertermic (PLKM). Inceptisol was forming way of pedoturbation and lessivage process where done clay and C-organic movements, ground water finded in 100 cm soil depts to half time in a years and base saturation ≥ 60%. This Inceptisol has loamy of textures, acid until alkalis of soil pH, moderately of nutrient stock and cation exchange capacity moderate until high value. These carracteristics indicated that this soil has potential for food crop cultivations. Therefore, the pedon PLKM more potential than pedon PLKS
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The lack of water availability and the short period of maize growth has the potential to be the main obstacles to achieving optimal production. Therefore, this research aimed to determine the water availability and long growth period... more
The lack of water availability and the short period of maize growth has the potential to be the main obstacles to achieving optimal production. Therefore, this research aimed to determine the water availability and long growth period (LGP) of maize plants in Boalemo Regency, which was included in the agrokilmat zone E2. Rainfall and temperature data from Saritani, Tangkobu, and Bubaa climate stations in Boalemo Regency were used over ten years, from 2012 to 2022. The soil profile moisture content data used pF 2.5 and pF 4.2 while the tool used Cropwat8.0. Furthermore, the determination of available water and LGP was conducted using a water balance table with the Thornwaite method. The results showed that the highest and lowest water availabilities were 556 mm and 118 mm at the Saritani and Tangkobu climate stations, with a maximum LGP of maize at 242 days and 181 days, respectively. Based on climate stations, the availability of water and the amount of LGP follow the pattern of Saritani climate station > Bubaa climate station > Tangkobu climate station.
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Increase national maize production has not been followed by an increase in maize productivity per unit area because maize was grown on land that was not suitable with these land quality. This study aims to determine the land quality that... more
Increase national maize production has not been followed by an increase in maize productivity per unit area because maize was grown on land that was not suitable with these land quality. This study aims to determine the land quality that control of local maize production. This research was conducted at the Gorontalo Regency. A total of 33 mapping units had been established containing data of soil properties, climate and terrain divided into land quality, as well as data of local maize production. A partial least square of structural equation models (PLS-SEM) analysis was used to determine the land quality and characteristics that control of local maize production through testing the validity and reliability of variables, as well as testing structural models. The results showed that the all manifest variables were valid and able to explain well the latent variables, except for texture, cation exchange capacity, and base saturation. Furthermore, the latent variables temperature, water availability, oxygen availability, nutrient retention, nutrients availability, sodicity, erosion hazard, flood hazard, and land preparation used has good composite reliability and high reliability because of the composite reliability and alpha cronbach >0.6, except for rooting media. Land quality that control of the local maize production were the oxygen availability (X1), rooting media (X2), nutrient retention (X3), nutrients availability (X4), erosion hazard (X5), and land preparation (X6) with the best equation: Y = 1.805 + 0.276X1 + 0.303X2 + 0.353X3 + 0.346X4-0.337X5-0.303X6. The land characteristics that control of the local maize production were drainage (X1), coarse material (X2), effective depth (X3), pH KCl (X4), C-organic (X5), total N (X6), available K (X7), slope (X8), soil erosion (X9), surface rock (X10) and rock outcrop (X11) with the best equation: Y = 2.447 + 0.187X1-0.212X2 + 0.153X3 + 0.349X4 + 0.166X5 + 0.169X6 + 0.313X7-0.352X8-0.230X9-0.237X10-0.187X11.
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ABSTRAK Pemberdayaan petani merupakan salah satu upaya untuk menjadikan petani lebih berdaya dan mengurangi ketergantungan terhadap subsidi pemerintah serta meningkatkan partisipasinya dalam pembangunan, tetapi sering sulit dijalankan... more
ABSTRAK Pemberdayaan petani merupakan salah satu upaya untuk menjadikan petani lebih berdaya dan mengurangi ketergantungan terhadap subsidi pemerintah serta meningkatkan partisipasinya dalam pembangunan, tetapi sering sulit dijalankan karena tingkat pengetahuan dan ketrampilan petani masih rendah. Kegiatan ini bertujuan untuk: (1) meningkatkan pengetahuan petani tentang pupuk organik, dan (2) meningkatkan ketrampilan petani dalam pembuatan pupuk organik. Kegiatan ini dilaksanakan pada bulan Juli 2019 di Kelompok Tani Rukun Sejahtera Desa Bualo Kecamatan Paguyaman Kabupaten Boalemo. Kegiatan ini berupa pelatihan pembuatan pembuatan pupuk organik yang dilakukan melalui ceramah dan praktek (demonstrasi). Sebelum dan sesudah pelatihan, dilakukan tes tingkat pengetahuan tentang pupuk organik dengan menggunakan kuisioner kepada peserta pelatihan. Penilaian pengetahuan peserta didasarkan pada lima item pertanyaan, yaitu: 1). Pengetahuan tentang pupuk organik; 2). Penggunaan pupuk organik; 3). Sumber bahan pupuk organik; 4). Kandungan hara dalam pupuk organik; dan 5). Jenis pupuk organik. Jumlah peserta pelatihan adalah 25 orang yang semuanya dijadikan sampel. Analisis data meliputi: analisis validitas, reliabilitas, dan analisis tabel menggunakan software SPSS 23. Tingkat pengetahuan peserta dilakukan dengan analisis skor terhadap jawaban pertanyaan menggunakan Skala Likert dan digambarkan dalam garis continuum. Praktek pembuatan pupuk organik dilakukan dengan pendekatan learning by doing. Bahan yang digunakan meliputi: limbah jagung, bungkil kakao, feases, urin, EM4, gula dan air. Limbah jagung dan bungkil kakao dicacah dengan mesin copper, kemudian semua bahan dicampur dan diaduk dalam bak fermentasi sampai merata dan percikkan dengan air sampai lembab merata serta ditutup dengan terpal dan dibiarkan selama 2-3 minggu untuk proses fermentasi dan pengomposan. Hasil kegiatan menunjukkan sebelum pelatihan, mayoritas peserta pelatihan (7 6,0%) tidak tahu tentang pupuk organik, sedangkan setelah pelatihan dan prektek pembuatan pupuk organik, mayoritas peserta pelatihan (88,6%) sudah tahu tentang pupuk organik dan cara pembuatannya. Tingkat ketrampilan petani dalam pembuatan pupuk organik juga telah meningkat yang ditunjukkan oleh indikator kemampuan mengoperasikan perangkat mesin pencacah, kemampuan memformulasikan dosis atau takaran bahan baku pupuk berupa larutan EM4+molase+air, kemampuan mencampuradukan bahan-bahan pupuk organik secara merata, dan kemampuan mengidentifikasi keberhasilan pupuk organik yang dibuat.
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Rice crops require sufficient amount of water for their development, but water is often a limiting factor if it is grown on dry Vertisol soils. The study aimed to determine the monthly water availability and water available of soil... more
Rice crops require sufficient amount of water for their development, but water is often a limiting factor if it is grown on dry Vertisol soils. The study aimed to determine the monthly water availability and water available of soil profiles for paddy on Endoaquert Ustic of Paguyaman. The research was conducted on 2 pedon of Vertisol soil profiles, which were pedon from Sidomukti Village of Mootilango District of Gorontalo Regency and from Sosial Village of Paguyaman District of Boalemo Regency. The soil profile was constructed and sampled according to soil survey principles. Climate data were collected from the Sidodadi and Molombulahe climate stations, including: rainfall data (mm), temperature (°C), relative humidity (%) and wind speed (km hour-1). Soil data used, including: soil water content of field capacity (pF = 2.5) and permanent wilting point (pF = 4.2) and root depth on 30 cm (rice roots). Monthly water availability analysis was using water balance method followed by water balance of soil profiles. The results showed that monthly water availability of Vertisol from Sidomukti Village was higher than Vertisol from Social Village. Water available of Vertisol soil profile from Sidomukti Village more by 41.09% compared to Vertisol from Social Village.
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This study aims to determine the soil mineralogy and soil chemical properties at two rainfed soil pedons in Sidomukti, Gorontalo. This study was conducted at 2 pedon of rainfed paddy soils from Sidomukti Village Mootilango District of... more
This study aims to determine the soil mineralogy and soil chemical properties at two rainfed soil pedons
in Sidomukti, Gorontalo. This study was conducted at 2 pedon of rainfed paddy soils from Sidomukti
Village Mootilango District of Gorontalo Regency. Implementation of the field based on the location
of the example profile (pedon). The soil profile is made and sampled in accordance with the principles
of soil surveying. Result of this research showed that Pedon PNS1 had easily weathered minerals
(albite, sanidin and green hornblende) more than pedon PNS2. While the clay mineral content of pedon
PNS1 dominated by smectite and kaolinite. Both pedon generally pH slightly acid to slightly alkaline
and negatively charged clean, C-organic content is very low, bases-dd predominantly calcium (Ca-dd)
with the sequence: Ca> Mg> K> Na, cation exchange capacity and base saturation dominant high and
very high. However, the pedon PNS1 was better than pedon PNS2 of soil fertility.
in Sidomukti, Gorontalo. This study was conducted at 2 pedon of rainfed paddy soils from Sidomukti
Village Mootilango District of Gorontalo Regency. Implementation of the field based on the location
of the example profile (pedon). The soil profile is made and sampled in accordance with the principles
of soil surveying. Result of this research showed that Pedon PNS1 had easily weathered minerals
(albite, sanidin and green hornblende) more than pedon PNS2. While the clay mineral content of pedon
PNS1 dominated by smectite and kaolinite. Both pedon generally pH slightly acid to slightly alkaline
and negatively charged clean, C-organic content is very low, bases-dd predominantly calcium (Ca-dd)
with the sequence: Ca> Mg> K> Na, cation exchange capacity and base saturation dominant high and
very high. However, the pedon PNS1 was better than pedon PNS2 of soil fertility.
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Swasembada pangan merupakan keniscayaan yang harus segera dicapai, mengingat kebutuhan pangan terus meningkat dari tahun ke tahun, sementara ketersediaan pangan cenderung fluktuatif. Maka eksplorasi lahan pertanian harus dilakukan, demi... more
Swasembada pangan merupakan keniscayaan yang harus segera dicapai, mengingat kebutuhan pangan terus meningkat dari tahun ke tahun, sementara ketersediaan pangan cenderung fluktuatif. Maka eksplorasi lahan pertanian harus dilakukan, demi mencapai pemanfaatan yang optimal dan membuka potensi-potensi lainnya agar dapat diberikan sebesar-besarnya untuk kesejahteraan masyarakat.
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Tanah vertisol mempunyai cadangan hara yang tinggi, tetapi sifat fisiknya sering menjadi kendala di dalam pemanfaatannya, sehingga perlu perbaikan melalui pemberian amelioran. Sumber bahan amelioran seyogianya berasal dari lokasi... more
Tanah vertisol mempunyai cadangan hara yang tinggi, tetapi sifat fisiknya sering menjadi kendala di dalam pemanfaatannya, sehingga perlu perbaikan melalui pemberian amelioran. Sumber bahan amelioran seyogianya berasal dari lokasi setempat, sehingga petani dapat melakukan upaya perbaikan dengan tingkat pengetahuan dan teknologi yang dikuasai serta lebih terjangkau. Buku ini tak hanya mencoba memberikan bukti bahwa penggunaan bahan amelioran berupa pasir, sabut kepala, dan sabut batang pisang mampu memperbaiki kualitas tanah dan sekaligus meningkatkan produktivitas tanaman padi, tetapi sekaligus menjadi awal bahwa dengan teknologi pertanian sederhana, petani Indonesia mampu kembali berswasembada.