Evapotranspiration (ET) is a significant consumer of irrigation water and precipitation on cropla... more Evapotranspiration (ET) is a significant consumer of irrigation water and precipitation on cropland. Global and regional interest in the sustainable management of limited freshwater supplies to meet the rapidly increasing population and food demands has resulted in advanced scientific research on ET measurement, rapid water accounting, and irrigation schedules in the NENA region. The primary goal of this paper is to compare actual daily evapotranspiration (ET) collected by a remote sensing model and validated by Energy Balance (EB) flux tower field measurements. The flux tower was installed in a wheat field in Sids Agricultural Research Station in Beni Suef Governorate. Through the integration of Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and Sentinel-2 data, a new remote sensing-based ET model is built on two parties: Thermal condition factor (TCF) and vegetation condition fraction (VCF). The remote sensing-based ET estimation model was evaluated using ET field mea...
Recent technological advances have made soil water sensors available for efficient and automatic ... more Recent technological advances have made soil water sensors available for efficient and automatic operation of irrigation systems. Automatic soil water sensor-based irrigation seeks to maintain a desired soil water range in the root zone that is optimal for plant growth. Automatic tensiometers were buried at 30 cm depth under the sandy soil surface of Nubaria experimental station of NRC, subjected to drip irrigation system to automatically schedule irrigation for pea crop. Soil moisture potentials 70, 75 and 85 kPa, represented 3 irrigation treatments and 3 Potassium treatments 50, 75 and 100% of 100 kg fed. -1 , the officially recommended amount of Potassium fertilization for a pea crop by the ministry of agriculture in Egypt for sandy soils, were scheduled and added with the drip irrigation portions. The obtained results revealed that using soil moisture potentials 70, 75 and 85 kPa were equivalent to 85, 75 and 60% of the field capacity of the soil, respectively. The average crop...
The aim of this research was determine the ma-ximum application uniformity of closed circuit tric... more The aim of this research was determine the ma-ximum application uniformity of closed circuit trickle irrigation systems designs. Laboratory tests carried out for Two types of closed circuits: a) One manifold for lateral lines or Closed cir-cuits with One Manifold of Trikle Irrigation Sys-tem (COMTIS); b) Closed circuits with Two
Potato (Solanum tuberosum L.) is an important crop in Egypt with great trade value for the export... more Potato (Solanum tuberosum L.) is an important crop in Egypt with great trade value for the export market. The addition of agrochemicals with possibly containing heavy metals, such as cadmium (Cd), decreases the quality of the final product. Generally, little is known about the factors that influence Cd content in this crop. The current study estimated the Cd levels in different organs of three potato cultivars grown in four commercial regions across Egypt. Further, we investigated the soil properties that affected Cd uptake during two growing seasons. With the exception of the Cd content of the soils, no relationships were detected between the tested soil properties (i.e., pH, conductivity, organic matter, and clay content) and Cd content in potato organs, because the soil from different regions showed comparable levels for these parameters. The average Cd content in the peeled tubers among different cultivars (0.145 mg Kg−1 DW) was below the maximum limit (0.5 mg Kg−1 DW). The patt...
Traditional methods for center pivot evaluation depend on the water depth distribution along the ... more Traditional methods for center pivot evaluation depend on the water depth distribution along the pivot arm. Estimation and mapping the water depth under pivot irrigation systems using remote sensing data is essential for calculating the coefficient of uniformity (CU) of water distribution. This study focuses on estimating and mapping water depth using Landsat OLI 8 satellite data integrated with Heerman and Hein (1968) modified equation for center pivot evaluation. Landsat OLI 8 image was geometrically and radiometrically corrected to calculate the vegetation and water indices (NDVI and NDWI) in addition to land surface temperature. Results of the statistical analysis showed that the collected water depth in catchment cans is also highly correlated negatively with NDVI. On the other hand water, depth was positively correlated with NDWI and LST. Multi-linear regression analysis using stepwise selection method was applied to estimate and map the water depth distribution. The results s...
American-Eurasian Journal of Sustainable Agriculture, 2014
Surface irrigation is considered one of the most common and extensive methods used for irrigation... more Surface irrigation is considered one of the most common and extensive methods used for irrigation in the old lands of Delta and Nile valley in Egypt. Many furrow systems operate at significantly lower efficiencies. To improve the efficiency of surface irrigation methods, the use of gated pipes is claimed to be one of the ways to achieve higher efficiencies, since it is considered one of the most efficient methods for conveying and distributing irrigation water over the entire field. Therefore, G-Pipe simulation model has been developed with the aim to simulate water distribution along the pipeline of the irrigation system for making a decision to select the optimal specification of the irrigation system. This work was carried out at the Experimental Farm of the Faculty of Agriculture, Ain Shams University, and Qalubia Governorate, Egypt. The objective of this study was to validate G-Pipe simulation model (gated pipe simulation model, developed by University of Southern Queensland, A...
A field experiment was conducted in two successive seasons to study the effect of drip (DI), low ... more A field experiment was conducted in two successive seasons to study the effect of drip (DI), low head bubbler (LHBI) and gated pipe (GPI) irrigation systems on yield, water consumption (WC), water use efficiency (WUE) and fertilizer use efficiency (FUE) of grape (Thompson seedless) crop grown in clay loam soil in El-Kanater El-Kheiria district, Qalubia Governorate, Egypt. Yield of the 1 season st was lower than that of the 2 one. Minimum and maximum yield values were 2166; 3776, 1982; 2888 nd and 2059; 3506 kg/fed under DI, GPI and LHBI systems, in the 1 and 2 season, respectively. Grape st nd yields under DI and LHBI systems were about 9.3; 30.7 % and 3.9; 21.4 % higher relative to that under GPI one in the 1 and 2 season, respectively. According to WC, irrigation systems could be arranged st nd in the following ascending order in both seasons GPI < LHBI < DI. Water consumption increased by 89; 86 % and 86; 65 % under DI and LHBI systems relative to GPI one in the 1 and st 2 ...
Evapotranspiration (ET) is a significant consumer of irrigation water and precipitation on cropla... more Evapotranspiration (ET) is a significant consumer of irrigation water and precipitation on cropland. Global and regional interest in the sustainable management of limited freshwater supplies to meet the rapidly increasing population and food demands has resulted in advanced scientific research on ET measurement, rapid water accounting, and irrigation schedules in the NENA region. The primary goal of this paper is to compare actual daily evapotranspiration (ET) collected by a remote sensing model and validated by Energy Balance (EB) flux tower field measurements. The flux tower was installed in a wheat field in Sids Agricultural Research Station in Beni Suef Governorate. Through the integration of Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and Sentinel-2 data, a new remote sensing-based ET model is built on two parties: Thermal condition factor (TCF) and vegetation condition fraction (VCF). The remote sensing-based ET estimation model was evaluated using ET field mea...
Recent technological advances have made soil water sensors available for efficient and automatic ... more Recent technological advances have made soil water sensors available for efficient and automatic operation of irrigation systems. Automatic soil water sensor-based irrigation seeks to maintain a desired soil water range in the root zone that is optimal for plant growth. Automatic tensiometers were buried at 30 cm depth under the sandy soil surface of Nubaria experimental station of NRC, subjected to drip irrigation system to automatically schedule irrigation for pea crop. Soil moisture potentials 70, 75 and 85 kPa, represented 3 irrigation treatments and 3 Potassium treatments 50, 75 and 100% of 100 kg fed. -1 , the officially recommended amount of Potassium fertilization for a pea crop by the ministry of agriculture in Egypt for sandy soils, were scheduled and added with the drip irrigation portions. The obtained results revealed that using soil moisture potentials 70, 75 and 85 kPa were equivalent to 85, 75 and 60% of the field capacity of the soil, respectively. The average crop...
The aim of this research was determine the ma-ximum application uniformity of closed circuit tric... more The aim of this research was determine the ma-ximum application uniformity of closed circuit trickle irrigation systems designs. Laboratory tests carried out for Two types of closed circuits: a) One manifold for lateral lines or Closed cir-cuits with One Manifold of Trikle Irrigation Sys-tem (COMTIS); b) Closed circuits with Two
Potato (Solanum tuberosum L.) is an important crop in Egypt with great trade value for the export... more Potato (Solanum tuberosum L.) is an important crop in Egypt with great trade value for the export market. The addition of agrochemicals with possibly containing heavy metals, such as cadmium (Cd), decreases the quality of the final product. Generally, little is known about the factors that influence Cd content in this crop. The current study estimated the Cd levels in different organs of three potato cultivars grown in four commercial regions across Egypt. Further, we investigated the soil properties that affected Cd uptake during two growing seasons. With the exception of the Cd content of the soils, no relationships were detected between the tested soil properties (i.e., pH, conductivity, organic matter, and clay content) and Cd content in potato organs, because the soil from different regions showed comparable levels for these parameters. The average Cd content in the peeled tubers among different cultivars (0.145 mg Kg−1 DW) was below the maximum limit (0.5 mg Kg−1 DW). The patt...
Traditional methods for center pivot evaluation depend on the water depth distribution along the ... more Traditional methods for center pivot evaluation depend on the water depth distribution along the pivot arm. Estimation and mapping the water depth under pivot irrigation systems using remote sensing data is essential for calculating the coefficient of uniformity (CU) of water distribution. This study focuses on estimating and mapping water depth using Landsat OLI 8 satellite data integrated with Heerman and Hein (1968) modified equation for center pivot evaluation. Landsat OLI 8 image was geometrically and radiometrically corrected to calculate the vegetation and water indices (NDVI and NDWI) in addition to land surface temperature. Results of the statistical analysis showed that the collected water depth in catchment cans is also highly correlated negatively with NDVI. On the other hand water, depth was positively correlated with NDWI and LST. Multi-linear regression analysis using stepwise selection method was applied to estimate and map the water depth distribution. The results s...
American-Eurasian Journal of Sustainable Agriculture, 2014
Surface irrigation is considered one of the most common and extensive methods used for irrigation... more Surface irrigation is considered one of the most common and extensive methods used for irrigation in the old lands of Delta and Nile valley in Egypt. Many furrow systems operate at significantly lower efficiencies. To improve the efficiency of surface irrigation methods, the use of gated pipes is claimed to be one of the ways to achieve higher efficiencies, since it is considered one of the most efficient methods for conveying and distributing irrigation water over the entire field. Therefore, G-Pipe simulation model has been developed with the aim to simulate water distribution along the pipeline of the irrigation system for making a decision to select the optimal specification of the irrigation system. This work was carried out at the Experimental Farm of the Faculty of Agriculture, Ain Shams University, and Qalubia Governorate, Egypt. The objective of this study was to validate G-Pipe simulation model (gated pipe simulation model, developed by University of Southern Queensland, A...
A field experiment was conducted in two successive seasons to study the effect of drip (DI), low ... more A field experiment was conducted in two successive seasons to study the effect of drip (DI), low head bubbler (LHBI) and gated pipe (GPI) irrigation systems on yield, water consumption (WC), water use efficiency (WUE) and fertilizer use efficiency (FUE) of grape (Thompson seedless) crop grown in clay loam soil in El-Kanater El-Kheiria district, Qalubia Governorate, Egypt. Yield of the 1 season st was lower than that of the 2 one. Minimum and maximum yield values were 2166; 3776, 1982; 2888 nd and 2059; 3506 kg/fed under DI, GPI and LHBI systems, in the 1 and 2 season, respectively. Grape st nd yields under DI and LHBI systems were about 9.3; 30.7 % and 3.9; 21.4 % higher relative to that under GPI one in the 1 and 2 season, respectively. According to WC, irrigation systems could be arranged st nd in the following ascending order in both seasons GPI < LHBI < DI. Water consumption increased by 89; 86 % and 86; 65 % under DI and LHBI systems relative to GPI one in the 1 and st 2 ...
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Papers by Abdel-ghany El-gindy