A study was conducted to assess available macro and secondary nutrient status of soils of Shirol ... more A study was conducted to assess available macro and secondary nutrient status of soils of Shirol Tehsil of Kolhapur District by GIS technique. 200 soil samples (0-22.5 cm) drawn during 2013 from 39 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The pH of soils of Shirol Tehsil varied from 7.0 to 9.0, most of the soils found to be moderately alkaline (77.5%) while EC varied from 0.06 to 6.30 dS m-1 , the soils found to be normal (91.5%). The calcium carbonate content varied from 1.1 to 15.1 per cent, the area was moderately calcareous (56%) to calcareous (27.5%). Organic carbon content varied from 0.30 to 1.29 per cent. The available nitrogen, phosphorus and potassium ranged from 185 to 580, 14.1 to 49.6 and 89.6 to 980.0 Kg ha-1 , respectively. The exchangeable calcium and magnesium ranged from 0.8 to 48.0 and 0.2 to 39.0 cmol (p +) Kg-1 , respectively. The soils were 66% and 33.5% sufficient and 34% and 66.5% deficient in exchangeable calcium and magnesium respectively. The available sulphur varied from 7.60 to 49.69 mg Kg-1. The soils were 99% sufficient and 1% deficient in available sulphur content. Introduction Soil is the mother for supporting and nourishing all life on the earth termed as 'soul of infinite life'. Its proper use generally determines the capability of life support system and socioeconomic development of any nation. The tremendously growing population in the country is an acute problem that demands maximum possible output of food, fibre and fuel from each unit of cultivated land area per unit time. Soil test results of one farm need to have scope to be connected with the broader population of all farms in a given area. The ideal situation would be to sample every farm to get soil fertility status of all the farms, but we are not be able to sample each farm in the population, because it is too costly, troublesome and time consuming, especially with the multiple small farm holding in many developing countries. We thus, need to generalize results of sample farms to get information of entire area. For the periods between 1975 to 1980, soil fertility maps for Nitrogen (N), Phosphorus (P) and Potassium (K) were prepared using soil test data generated by soil testing laboratories that functioned throughout the country (Ghosh and Hasan, 1979) [5]. Soil fertility plays a key role in increasing crop production in the soil. It comprises not only in supply of nutrients but also their efficient management. The fertility status of soil indicates their nutrient supplying capability. Soils of Maharashtra state are categorized as poor in fertility and they vary widely in genetic, morphological, physical, chemical and biological characteristics. The soil fertility undergoes changes due to intensive cropping, manuring and fertilizer applications. The recent technologies like GPS and GIS thus have much to offer for preparing soil fertility maps. Global positioning system (GPS) is a space based navigation and positioning system administered by U.S military, which helps to determine the exact position of an object on the earth surface in terms of geographical coordinates (French, 1996) [4]. Geographic information system (GIS) is a computer system for capturing, storing, querying and displaying geographical data (Chang, 2002) [1]. Once the soil fertility maps are created, it is possible to transform the information about the fertility status of the area.
A study was conducted to assess micronutrient status of soils of Shirol Tehsil of Kolhapur Distri... more A study was conducted to assess micronutrient status of soils of Shirol Tehsil of Kolhapur District by GIS technique. 200 soil samples (0-22.5 cm) drawn during 2013 from 39 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The results indicated that all samples were slightly alkaline to moderately alkaline in soil reaction (7.0-9.0), non-saline (0.06-6.3dS m-1), low to very high in organic carbon (0.30 – 1.29%) and Calcium Carbonates ranged from (1.1-15.1%). Regarding micronutrients, the DTPA extractable Zn and Fe were categorized as very low to medium which ranged from (0.21-4.35 mg Kg-1) and (2.20-9.05 mg Kg-1) respectively. The DTPA extractable Mn was ranged from (0.03-11.51 mg Kg-1) which are categorized as medium to high. The DTPA extractable Cu was ranged from (0.62-27.96 mg Kg-1) which are categorized as moderately high to very high. Introduction Micronutrient plays a vital role in maintaining soil health and also productivity of crops. These are needed in very small amounts, the soil must supply micronutrients for desired growth of plants and synthesis of human food. Increased removal of micronutrients as a consequence of adoption of high yielding varieties and intensive cropping together with shift towards high analysis NPK fertilizers has caused decline in the level of micronutrients in the soil below normal at which productivity of crops cannot be sustained. However, exploitive nature of modern agriculture involving use of organic manures and less recycling of crop residues are important factors contributing towards accelerated exhaustion of micronutrients from the soil. The deficiencies of micronutrients have become a major constraints to productivity, stability and sustainability of soils. Soils with finer particles and with higher organic matter can generally provide a greater reserve of these elements whereas, coarse textured soils such as, sand have fewer reserves and tend to get depleted rather quickly. The life supporting systems of a country and socioeconomic development of its people depends on the soil. More than ever before, a renewed attention is being given to soils due to rapidly declining land area for agriculture, declining in soil fertility and increasing soil degradation, wrong land use policies and irrational and imbalanced use of inputs (Kanwar, 2004) [4]. Soil testing provides the information about the nutrient availability of the soil. Soil fertility maps are meant for highlighting the nutrient needs, based on fertility status of soils to realize good crop yields. Obviously, a soil fetility map for a particular area can prove highly beneficial in guiding the farmers, manufacturers and palnners in ascertaining the requirement of various fertilizers in a season/ year and making projections for increased requirement based on cropping pattern and intensity. The recent technologies like GIS and Global Positioning System (GPS) thus have much to offer for preparing soil fertility maps. Soil chemical and physical properties vary within a single field. Spatial tools like Global Positioning System (GPS) and Geographic Information System (GIS) for storing and analyzing spatial data can help us to make better decisions in agriculture particularly land development, environmental protection and restoration. The present study therefore, was taken up to evaluate and map micronutrient status of Shirol Tehsil soil using GIS technique for formulating site specific recommendation of nutrients.
A study was conducted to assess available micro nutrient status of soils of Pathardi Tehsil of Ah... more A study was conducted to assess available micro nutrient status of soils of Pathardi Tehsil of Ahmednagar District by GIS technique. 199 soil samples (0-22.5 cm) drawn during 2014 from the 70 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The results indicated that all samples were slightly alkaline to moderately alkaline in soil reaction (7.09-8.39), non-saline (0.11-0.58 dS m-1), low to moderately high in organic carbon (0.22-0.74 %) and Calcium Carbonates ranged from (5.75-13.0 %). Regarding to micronutrients, the soils were sufficient in available Fe, Mn, Zn, Cu, B and Mo which ranged between (1.13-5.96 mg kg-1), (2.65-3.96 mg kg-1), (0.19-0.74 mg kg-1), (1.15-7.72 mg kg-1), (0.25-0.77 mg kg-1) and (0.026-0.068 mg kg-1) respectively, whereas Mn, Cu and Mo were sufficient and Fe, Zn and B were poorly deficient to sufficient in soil. The pH of the soils recorded negative and non-significant correlation with available Mn and Mo. It was positive and non-significant correlation with available Fe, Zn and B. While negative and significant with available Cu. The EC showed positive and non-significant correlation with available Fe, Zn, B and Mo While negative and significant correlation with available Mn. Organic carbon showed negative and non-significant correlation with available Mn and positive and non-significant correlation with available Fe, Zn and Mo. While B showed negative and significant correlation with organic carbon. CaCO3 was negative and non-significantly correlated with available Mn, Zn, Mo and positively correlated with available Cu and B.
A survey was conducted to know available macro and secondary nutrient status of soils of Pathardi... more A survey was conducted to know available macro and secondary nutrient status of soils of Pathardi Tehsil of Ahmednagar District by GIS technique. 199 soil samples (0-22.5 cm) drawn during 2014 from the 70 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The results indicated that all samples were slightly alkaline to moderately alkaline in soil reaction (7.09-8.39), non-saline (0.11-0.58 dS m-1), low to moderately high in organic carbon (0.22-0.74 %) and Calcium Carbonates ranged from (5.75-13.0 %). Regarding to macro and secondary nutrients, the available N, P and K which ranged between (62.72.-338.68 kg ha-1), (3.31-19.64 kg ha-1) and (302.4-571.2 kg ha-1), respectively, whereas exchangeable Ca and Mg was sufficient in soils and available S is ranged between (8.4-20.4 mg kg-1) was slightly deficient to sufficient in soil. Introduction Soils are considered as the integral part of the landscape and their characteristics are largely governed by the landforms in which they are developed. Topographic maps, aerial photographs and remote sensing data provide useful tools for geomorphic analysis of the region and help in the soil survey and mapping (Pandey and Pofali, 1982) [12]. The growing population in the country is an acute problem that demands maximum possible output of food, fibre and fuel from each unit of cultivated land area per unit time. Soil test results of one farm need to have scope to be connected with the broader population of all farms in a given area. The ideal situation would be to sample every farm to get soil fertility status of all the farms, but we are not be able to sample each farm in the population, because it is too costly, troublesome and time consuming, especially with the multiple small farm holding in many developing countries. We thus, need to generalize results of sample farms to get information of entire area. Global Positing System and Geographical Information System are advanced tool for studying on site specific nutrient management which can be efficiently used for monitoring soil fertility changes. The geo-referenced nutrient status of soils in Pathardi Tehsil, Dist-Ahmednagar, would be useful for ensuring balanced fertilization to crops which demands the systematic study of macronutrients including assessment of macronutrient status of different soils with delineation of nutrient deficiency or sufficiency. Farmers can use GPS to locate the nutrient deficiencies and can manage the accurate distribution of fertilizer chemicals. Many would argue that GPS has found its greatest utility in the field of Geographic Information System (GIS) with some consideration for error.
The representative soil series of order Entisols, Inceptisols and Vertisols collected from agricu... more The representative soil series of order Entisols, Inceptisols and Vertisols collected from agriculture college Kolhapur and different research stations of Sub-montane zone of Maharashtra were assessed for potassium fixation capacity and potassium release. The K-fixation in different soils ranged from 78.80 mg kg-1 (Kurkum series of A.R.S., Vadgaon-Maval) to 276.40 mg kg-1 (Koregaon series of A.R.S., Karad). From the mean values, it was observed that Vertisols showed highest K fixation capacity followed by Inceptisols and Entisols. All the soil series were categorized as very low in step K except Koregaon series of A.R.S., Karad of Vertisols. The sub-surface horizon showed higher cumulative step K release than the surface horizon. The step K release studies pointed out that limited pool of non-exchangeable K was available to crops if these soils are placed under intensive cropping. The step K and constant rate K was highest in Vertisols followed by Inceptisols and Entisols.
A study was conducted to assess available micro nutrient status of soils of Sakri Tehsil of Dhule... more A study was conducted to assess available micro nutrient status of soils of Sakri Tehsil of Dhule District by GIS technique. About 225 soil samples (0-22.5 cm) were drawn during 2014 from the 75 villages and analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The results indicated that the samples were slightly acidic to moderately alkaline in soil reaction (5.70-8.37), non-saline (0.11-0.97dS m-1), very low to high in organic carbon (2.10-9.30 g kg-1) and calcium carbonates ranged from (1.25-19.5 %). The available Fe, Mn, Zn, Cu, B and Mo in soils of Sakri Tehsil were ranged between 1.20-17.97, 2.04-6.60, 0.10-1.51, 0.29-3.93, 0.05-0.84 and 0.053-0.372 mg kg-1 , respectively. Among the micronutrients, manganese, copper and molybdenum were fond sufficient in soil. The use of GPS-GIS based technique for soil sampling is new land mark, which will enable the further researchers and University Officials to monitor the changes in soil fertility status for years to come.
The available forms of nutrients governs the fertility of soil and controls the productivity of c... more The available forms of nutrients governs the fertility of soil and controls the productivity of crops but this is influenced by pH, EC, organic carbon and CaCO3 status of soil. A study was conducted to assess available nutrient status and their relationship with chemical properties of soils of Sakri Tehsil of Dhule District by GIS technique and results showed that, the positive significant correlation of soil pH with available P and significant negative correlation with available micronutrients i.e. F, Zn, Cu and B was observed. EC was negatively and significantly correlated with available Mn. Organic carbon was non-significantly and negatively correlated with available P, K, S, Fe, Zn, Cu, Mo and exchangeable Mg while, non-significantly and positively correlated with available N, S, Mn, B and exchangeable Ca. Calcium carbonate shows non-significantly negative correlation with available P, S, Fe, Mn and exchangeable Ca and Mg. Introduction Soil fertility is one of the important factors controlling yields of the crops. Soil characterization in relation to evaluation of fertility status of the soils of an area or region is an important aspect in context of sustainable agriculture production. The tremendously growing population in the country is an acute problem that demands maximum possible output of food, fibre and fuel from each unit of cultivated land area per unit time. Soil test results of one farm need to have scope to be connected with the broader population of all farms in a given area. The ideal situation would be to sample every farm to get soil fertility status of all the farms, but we are not be able to sample each farm in the population, because it is too costly, troublesome and time consuming, especially with the multiple small farm holding in many developing countries. According to the Vishwanath (1938) the incidence of micronutrient deficiencies in various crops of the Khandesh region has increased markedly in recent years and opinioned that it might be due to continuous and intensive multiple cropping and use of high yielding cultivars which may have higher micronutrient demand, enhanced production of crops on marginal soils that contain low levels of essential nutrients, increased use of high analysis fertilizers with low amount of micronutrient contamination, decreased use of organic manures viz; animal manures, composts and crop residues, use of soils that are inherently low in micronutrient reserves and involvement of natural and anthropogenic factors that limit adequate plant nutrient availability and create element imbalances. The recent technologies like GIS and Global Positioning System (GPS) thus have much to offer for preparing soil fertility maps. Soil chemical and physical properties vary within a single field. Spatial tools like Global Positioning System (GPS) and Geographic Information System (GIS) for storing and analyzing spatial data can help us to make better decisions in agriculture particularly land development, environmental protection and restoration. In precision agriculture, farmer's uses GPS and GIS as yield monitors and variable rate technology to apply appropriate quantities of input in different parts of field.. Farmers can use GPS to locate the nutrient deficiencies and can manage the accurate distribution of fertilizer chemicals. GPS can provide suitable location on the earth with a unique address (its precise location). A GIS is basically a descriptive database of the earth or a specific part of the earth. GPS-GIS are advanced tool for studying on site specific nutrient management which can be
The available forms of nutrients governs the fertility of soil and controls the productivity of c... more The available forms of nutrients governs the fertility of soil and controls the productivity of crops but this is influenced by pH, EC, organic carbon and CaCO3 status of soil. A study was conducted to assess available nutrient status and their relationship with chemical properties of soils of Sakri Tehsil of Dhule District by GIS technique and results showed that, the positive significant correlation of soil pH with available P and significant negative correlation with available micronutrients i.e. F, Zn, Cu and B was observed. EC was negatively and significantly correlated with available Mn. Organic carbon was non-significantly and negatively correlated with available P, K, S, Fe, Zn, Cu, Mo and exchangeable Mg while, non-significantly and positively correlated with available N, S, Mn, B and exchangeable Ca. Calcium carbonate shows non-significantly negative correlation with available P, S, Fe, Mn and exchangeable Ca and Mg. Introduction Soil fertility is one of the important factors controlling yields of the crops. Soil characterization in relation to evaluation of fertility status of the soils of an area or region is an important aspect in context of sustainable agriculture production. The tremendously growing population in the country is an acute problem that demands maximum possible output of food, fibre and fuel from each unit of cultivated land area per unit time. Soil test results of one farm need to have scope to be connected with the broader population of all farms in a given area. The ideal situation would be to sample every farm to get soil fertility status of all the farms, but we are not be able to sample each farm in the population, because it is too costly, troublesome and time consuming, especially with the multiple small farm holding in many developing countries. According to the Vishwanath (1938) the incidence of micronutrient deficiencies in various crops of the Khandesh region has increased markedly in recent years and opinioned that it might be due to continuous and intensive multiple cropping and use of high yielding cultivars which may have higher micronutrient demand, enhanced production of crops on marginal soils that contain low levels of essential nutrients, increased use of high analysis fertilizers with low amount of micronutrient contamination, decreased use of organic manures viz; animal manures, composts and crop residues, use of soils that are inherently low in micronutrient reserves and involvement of natural and anthropogenic factors that limit adequate plant nutrient availability and create element imbalances. The recent technologies like GIS and Global Positioning System (GPS) thus have much to offer for preparing soil fertility maps. Soil chemical and physical properties vary within a single field. Spatial tools like Global Positioning System (GPS) and Geographic Information System (GIS) for storing and analyzing spatial data can help us to make better decisions in agriculture particularly land development, environmental protection and restoration. In precision agriculture, farmer's uses GPS and GIS as yield monitors and variable rate technology to apply appropriate quantities of input in different parts of field.. Farmers can use GPS to locate the nutrient deficiencies and can manage the accurate distribution of fertilizer chemicals. GPS can provide suitable location on the earth with a unique address (its precise location). A GIS is basically a descriptive database of the earth or a specific part of the earth. GPS-GIS are advanced tool for studying on site specific nutrient management which can be
A study was conducted to assess available macro and secondary nutrient status of soils of Shirol ... more A study was conducted to assess available macro and secondary nutrient status of soils of Shirol Tehsil of Kolhapur District by GIS technique. 200 soil samples (0-22.5 cm) drawn during 2013 from 39 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The pH of soils of Shirol Tehsil varied from 7.0 to 9.0, most of the soils found to be moderately alkaline (77.5%) while EC varied from 0.06 to 6.30 dS m-1 , the soils found to be normal (91.5%). The calcium carbonate content varied from 1.1 to 15.1 per cent, the area was moderately calcareous (56%) to calcareous (27.5%). Organic carbon content varied from 0.30 to 1.29 per cent. The available nitrogen, phosphorus and potassium ranged from 185 to 580, 14.1 to 49.6 and 89.6 to 980.0 Kg ha-1 , respectively. The exchangeable calcium and magnesium ranged from 0.8 to 48.0 and 0.2 to 39.0 cmol (p +) Kg-1 , respectively. The soils were 66% and 33.5% sufficient and 34% and 66.5% deficient in exchangeable calcium and magnesium respectively. The available sulphur varied from 7.60 to 49.69 mg Kg-1. The soils were 99% sufficient and 1% deficient in available sulphur content. Introduction Soil is the mother for supporting and nourishing all life on the earth termed as 'soul of infinite life'. Its proper use generally determines the capability of life support system and socioeconomic development of any nation. The tremendously growing population in the country is an acute problem that demands maximum possible output of food, fibre and fuel from each unit of cultivated land area per unit time. Soil test results of one farm need to have scope to be connected with the broader population of all farms in a given area. The ideal situation would be to sample every farm to get soil fertility status of all the farms, but we are not be able to sample each farm in the population, because it is too costly, troublesome and time consuming, especially with the multiple small farm holding in many developing countries. We thus, need to generalize results of sample farms to get information of entire area. For the periods between 1975 to 1980, soil fertility maps for Nitrogen (N), Phosphorus (P) and Potassium (K) were prepared using soil test data generated by soil testing laboratories that functioned throughout the country (Ghosh and Hasan, 1979) [5]. Soil fertility plays a key role in increasing crop production in the soil. It comprises not only in supply of nutrients but also their efficient management. The fertility status of soil indicates their nutrient supplying capability. Soils of Maharashtra state are categorized as poor in fertility and they vary widely in genetic, morphological, physical, chemical and biological characteristics. The soil fertility undergoes changes due to intensive cropping, manuring and fertilizer applications. The recent technologies like GPS and GIS thus have much to offer for preparing soil fertility maps. Global positioning system (GPS) is a space based navigation and positioning system administered by U.S military, which helps to determine the exact position of an object on the earth surface in terms of geographical coordinates (French, 1996) [4]. Geographic information system (GIS) is a computer system for capturing, storing, querying and displaying geographical data (Chang, 2002) [1]. Once the soil fertility maps are created, it is possible to transform the information about the fertility status of the area.
A study was conducted to assess micronutrient status of soils of Shirol Tehsil of Kolhapur Distri... more A study was conducted to assess micronutrient status of soils of Shirol Tehsil of Kolhapur District by GIS technique. 200 soil samples (0-22.5 cm) drawn during 2013 from 39 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The results indicated that all samples were slightly alkaline to moderately alkaline in soil reaction (7.0-9.0), non-saline (0.06-6.3dS m-1), low to very high in organic carbon (0.30 – 1.29%) and Calcium Carbonates ranged from (1.1-15.1%). Regarding micronutrients, the DTPA extractable Zn and Fe were categorized as very low to medium which ranged from (0.21-4.35 mg Kg-1) and (2.20-9.05 mg Kg-1) respectively. The DTPA extractable Mn was ranged from (0.03-11.51 mg Kg-1) which are categorized as medium to high. The DTPA extractable Cu was ranged from (0.62-27.96 mg Kg-1) which are categorized as moderately high to very high. Introduction Micronutrient plays a vital role in maintaining soil health and also productivity of crops. These are needed in very small amounts, the soil must supply micronutrients for desired growth of plants and synthesis of human food. Increased removal of micronutrients as a consequence of adoption of high yielding varieties and intensive cropping together with shift towards high analysis NPK fertilizers has caused decline in the level of micronutrients in the soil below normal at which productivity of crops cannot be sustained. However, exploitive nature of modern agriculture involving use of organic manures and less recycling of crop residues are important factors contributing towards accelerated exhaustion of micronutrients from the soil. The deficiencies of micronutrients have become a major constraints to productivity, stability and sustainability of soils. Soils with finer particles and with higher organic matter can generally provide a greater reserve of these elements whereas, coarse textured soils such as, sand have fewer reserves and tend to get depleted rather quickly. The life supporting systems of a country and socioeconomic development of its people depends on the soil. More than ever before, a renewed attention is being given to soils due to rapidly declining land area for agriculture, declining in soil fertility and increasing soil degradation, wrong land use policies and irrational and imbalanced use of inputs (Kanwar, 2004) [4]. Soil testing provides the information about the nutrient availability of the soil. Soil fertility maps are meant for highlighting the nutrient needs, based on fertility status of soils to realize good crop yields. Obviously, a soil fetility map for a particular area can prove highly beneficial in guiding the farmers, manufacturers and palnners in ascertaining the requirement of various fertilizers in a season/ year and making projections for increased requirement based on cropping pattern and intensity. The recent technologies like GIS and Global Positioning System (GPS) thus have much to offer for preparing soil fertility maps. Soil chemical and physical properties vary within a single field. Spatial tools like Global Positioning System (GPS) and Geographic Information System (GIS) for storing and analyzing spatial data can help us to make better decisions in agriculture particularly land development, environmental protection and restoration. The present study therefore, was taken up to evaluate and map micronutrient status of Shirol Tehsil soil using GIS technique for formulating site specific recommendation of nutrients.
A study was conducted to assess available micro nutrient status of soils of Pathardi Tehsil of Ah... more A study was conducted to assess available micro nutrient status of soils of Pathardi Tehsil of Ahmednagar District by GIS technique. 199 soil samples (0-22.5 cm) drawn during 2014 from the 70 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The results indicated that all samples were slightly alkaline to moderately alkaline in soil reaction (7.09-8.39), non-saline (0.11-0.58 dS m-1), low to moderately high in organic carbon (0.22-0.74 %) and Calcium Carbonates ranged from (5.75-13.0 %). Regarding to micronutrients, the soils were sufficient in available Fe, Mn, Zn, Cu, B and Mo which ranged between (1.13-5.96 mg kg-1), (2.65-3.96 mg kg-1), (0.19-0.74 mg kg-1), (1.15-7.72 mg kg-1), (0.25-0.77 mg kg-1) and (0.026-0.068 mg kg-1) respectively, whereas Mn, Cu and Mo were sufficient and Fe, Zn and B were poorly deficient to sufficient in soil. The pH of the soils recorded negative and non-significant correlation with available Mn and Mo. It was positive and non-significant correlation with available Fe, Zn and B. While negative and significant with available Cu. The EC showed positive and non-significant correlation with available Fe, Zn, B and Mo While negative and significant correlation with available Mn. Organic carbon showed negative and non-significant correlation with available Mn and positive and non-significant correlation with available Fe, Zn and Mo. While B showed negative and significant correlation with organic carbon. CaCO3 was negative and non-significantly correlated with available Mn, Zn, Mo and positively correlated with available Cu and B.
A survey was conducted to know available macro and secondary nutrient status of soils of Pathardi... more A survey was conducted to know available macro and secondary nutrient status of soils of Pathardi Tehsil of Ahmednagar District by GIS technique. 199 soil samples (0-22.5 cm) drawn during 2014 from the 70 villages were analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The results indicated that all samples were slightly alkaline to moderately alkaline in soil reaction (7.09-8.39), non-saline (0.11-0.58 dS m-1), low to moderately high in organic carbon (0.22-0.74 %) and Calcium Carbonates ranged from (5.75-13.0 %). Regarding to macro and secondary nutrients, the available N, P and K which ranged between (62.72.-338.68 kg ha-1), (3.31-19.64 kg ha-1) and (302.4-571.2 kg ha-1), respectively, whereas exchangeable Ca and Mg was sufficient in soils and available S is ranged between (8.4-20.4 mg kg-1) was slightly deficient to sufficient in soil. Introduction Soils are considered as the integral part of the landscape and their characteristics are largely governed by the landforms in which they are developed. Topographic maps, aerial photographs and remote sensing data provide useful tools for geomorphic analysis of the region and help in the soil survey and mapping (Pandey and Pofali, 1982) [12]. The growing population in the country is an acute problem that demands maximum possible output of food, fibre and fuel from each unit of cultivated land area per unit time. Soil test results of one farm need to have scope to be connected with the broader population of all farms in a given area. The ideal situation would be to sample every farm to get soil fertility status of all the farms, but we are not be able to sample each farm in the population, because it is too costly, troublesome and time consuming, especially with the multiple small farm holding in many developing countries. We thus, need to generalize results of sample farms to get information of entire area. Global Positing System and Geographical Information System are advanced tool for studying on site specific nutrient management which can be efficiently used for monitoring soil fertility changes. The geo-referenced nutrient status of soils in Pathardi Tehsil, Dist-Ahmednagar, would be useful for ensuring balanced fertilization to crops which demands the systematic study of macronutrients including assessment of macronutrient status of different soils with delineation of nutrient deficiency or sufficiency. Farmers can use GPS to locate the nutrient deficiencies and can manage the accurate distribution of fertilizer chemicals. Many would argue that GPS has found its greatest utility in the field of Geographic Information System (GIS) with some consideration for error.
The representative soil series of order Entisols, Inceptisols and Vertisols collected from agricu... more The representative soil series of order Entisols, Inceptisols and Vertisols collected from agriculture college Kolhapur and different research stations of Sub-montane zone of Maharashtra were assessed for potassium fixation capacity and potassium release. The K-fixation in different soils ranged from 78.80 mg kg-1 (Kurkum series of A.R.S., Vadgaon-Maval) to 276.40 mg kg-1 (Koregaon series of A.R.S., Karad). From the mean values, it was observed that Vertisols showed highest K fixation capacity followed by Inceptisols and Entisols. All the soil series were categorized as very low in step K except Koregaon series of A.R.S., Karad of Vertisols. The sub-surface horizon showed higher cumulative step K release than the surface horizon. The step K release studies pointed out that limited pool of non-exchangeable K was available to crops if these soils are placed under intensive cropping. The step K and constant rate K was highest in Vertisols followed by Inceptisols and Entisols.
A study was conducted to assess available micro nutrient status of soils of Sakri Tehsil of Dhule... more A study was conducted to assess available micro nutrient status of soils of Sakri Tehsil of Dhule District by GIS technique. About 225 soil samples (0-22.5 cm) were drawn during 2014 from the 75 villages and analyzed for their fertility status and mapped by geographic information system (GIS) technique. The exact locations of soil samples were recorded with the help of GPS. The results indicated that the samples were slightly acidic to moderately alkaline in soil reaction (5.70-8.37), non-saline (0.11-0.97dS m-1), very low to high in organic carbon (2.10-9.30 g kg-1) and calcium carbonates ranged from (1.25-19.5 %). The available Fe, Mn, Zn, Cu, B and Mo in soils of Sakri Tehsil were ranged between 1.20-17.97, 2.04-6.60, 0.10-1.51, 0.29-3.93, 0.05-0.84 and 0.053-0.372 mg kg-1 , respectively. Among the micronutrients, manganese, copper and molybdenum were fond sufficient in soil. The use of GPS-GIS based technique for soil sampling is new land mark, which will enable the further researchers and University Officials to monitor the changes in soil fertility status for years to come.
The available forms of nutrients governs the fertility of soil and controls the productivity of c... more The available forms of nutrients governs the fertility of soil and controls the productivity of crops but this is influenced by pH, EC, organic carbon and CaCO3 status of soil. A study was conducted to assess available nutrient status and their relationship with chemical properties of soils of Sakri Tehsil of Dhule District by GIS technique and results showed that, the positive significant correlation of soil pH with available P and significant negative correlation with available micronutrients i.e. F, Zn, Cu and B was observed. EC was negatively and significantly correlated with available Mn. Organic carbon was non-significantly and negatively correlated with available P, K, S, Fe, Zn, Cu, Mo and exchangeable Mg while, non-significantly and positively correlated with available N, S, Mn, B and exchangeable Ca. Calcium carbonate shows non-significantly negative correlation with available P, S, Fe, Mn and exchangeable Ca and Mg. Introduction Soil fertility is one of the important factors controlling yields of the crops. Soil characterization in relation to evaluation of fertility status of the soils of an area or region is an important aspect in context of sustainable agriculture production. The tremendously growing population in the country is an acute problem that demands maximum possible output of food, fibre and fuel from each unit of cultivated land area per unit time. Soil test results of one farm need to have scope to be connected with the broader population of all farms in a given area. The ideal situation would be to sample every farm to get soil fertility status of all the farms, but we are not be able to sample each farm in the population, because it is too costly, troublesome and time consuming, especially with the multiple small farm holding in many developing countries. According to the Vishwanath (1938) the incidence of micronutrient deficiencies in various crops of the Khandesh region has increased markedly in recent years and opinioned that it might be due to continuous and intensive multiple cropping and use of high yielding cultivars which may have higher micronutrient demand, enhanced production of crops on marginal soils that contain low levels of essential nutrients, increased use of high analysis fertilizers with low amount of micronutrient contamination, decreased use of organic manures viz; animal manures, composts and crop residues, use of soils that are inherently low in micronutrient reserves and involvement of natural and anthropogenic factors that limit adequate plant nutrient availability and create element imbalances. The recent technologies like GIS and Global Positioning System (GPS) thus have much to offer for preparing soil fertility maps. Soil chemical and physical properties vary within a single field. Spatial tools like Global Positioning System (GPS) and Geographic Information System (GIS) for storing and analyzing spatial data can help us to make better decisions in agriculture particularly land development, environmental protection and restoration. In precision agriculture, farmer's uses GPS and GIS as yield monitors and variable rate technology to apply appropriate quantities of input in different parts of field.. Farmers can use GPS to locate the nutrient deficiencies and can manage the accurate distribution of fertilizer chemicals. GPS can provide suitable location on the earth with a unique address (its precise location). A GIS is basically a descriptive database of the earth or a specific part of the earth. GPS-GIS are advanced tool for studying on site specific nutrient management which can be
The available forms of nutrients governs the fertility of soil and controls the productivity of c... more The available forms of nutrients governs the fertility of soil and controls the productivity of crops but this is influenced by pH, EC, organic carbon and CaCO3 status of soil. A study was conducted to assess available nutrient status and their relationship with chemical properties of soils of Sakri Tehsil of Dhule District by GIS technique and results showed that, the positive significant correlation of soil pH with available P and significant negative correlation with available micronutrients i.e. F, Zn, Cu and B was observed. EC was negatively and significantly correlated with available Mn. Organic carbon was non-significantly and negatively correlated with available P, K, S, Fe, Zn, Cu, Mo and exchangeable Mg while, non-significantly and positively correlated with available N, S, Mn, B and exchangeable Ca. Calcium carbonate shows non-significantly negative correlation with available P, S, Fe, Mn and exchangeable Ca and Mg. Introduction Soil fertility is one of the important factors controlling yields of the crops. Soil characterization in relation to evaluation of fertility status of the soils of an area or region is an important aspect in context of sustainable agriculture production. The tremendously growing population in the country is an acute problem that demands maximum possible output of food, fibre and fuel from each unit of cultivated land area per unit time. Soil test results of one farm need to have scope to be connected with the broader population of all farms in a given area. The ideal situation would be to sample every farm to get soil fertility status of all the farms, but we are not be able to sample each farm in the population, because it is too costly, troublesome and time consuming, especially with the multiple small farm holding in many developing countries. According to the Vishwanath (1938) the incidence of micronutrient deficiencies in various crops of the Khandesh region has increased markedly in recent years and opinioned that it might be due to continuous and intensive multiple cropping and use of high yielding cultivars which may have higher micronutrient demand, enhanced production of crops on marginal soils that contain low levels of essential nutrients, increased use of high analysis fertilizers with low amount of micronutrient contamination, decreased use of organic manures viz; animal manures, composts and crop residues, use of soils that are inherently low in micronutrient reserves and involvement of natural and anthropogenic factors that limit adequate plant nutrient availability and create element imbalances. The recent technologies like GIS and Global Positioning System (GPS) thus have much to offer for preparing soil fertility maps. Soil chemical and physical properties vary within a single field. Spatial tools like Global Positioning System (GPS) and Geographic Information System (GIS) for storing and analyzing spatial data can help us to make better decisions in agriculture particularly land development, environmental protection and restoration. In precision agriculture, farmer's uses GPS and GIS as yield monitors and variable rate technology to apply appropriate quantities of input in different parts of field.. Farmers can use GPS to locate the nutrient deficiencies and can manage the accurate distribution of fertilizer chemicals. GPS can provide suitable location on the earth with a unique address (its precise location). A GIS is basically a descriptive database of the earth or a specific part of the earth. GPS-GIS are advanced tool for studying on site specific nutrient management which can be
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