Papers by Ali G A M A L Abd El-Tawab
Ali Gamal Abd El-Tawab, 2023
Due to the importance of improving salt-affected soils in Egypt's agricultural security policy, a... more Due to the importance of improving salt-affected soils in Egypt's agricultural security policy, a field experiment was conducted in the winter season of 2021/2022 at Kom Abou-Khallad village, Nasser City, Beni-Suef Governorate, Egypt, aiming to determine the impact of various amendments with two-tillage systems on certain properties of salt-affected soil, as well as the growth and productivity of alfalfa plants. Different amelioration techniques were applied using soil conditioners (natural gypsum, modified cement dust, phosphogypsum, and filter mud) that were carried out under two tillage systems, namely, shallow and deep (subsoil). The results show that subsoil tillage decreased bulk density, penetration resistance, pH, EC, and ESP and increased total porosity, hydraulic conductivity, available water and soil organic matter as well as increased the fresh and dry yield of alfalfa plants and protein (%), N, P and K uptake in alfalfa shoots. Treated alfalfa plants cultivated in salt-affected soil with soil conditioners, especially filter mud (FM1) at a rate of 100% G.R resulted in a decreased hazardous effect of salinity by improving soil properties, which consequently increased its productivity.
Ali Gamal Abd El-Tawab, 2023
Due to the importance of improving salt-affected soils in Egypt's agricultural security policy, a... more Due to the importance of improving salt-affected soils in Egypt's agricultural security policy, a field experiment was conducted in the winter of 2021/2022 at Kom Abou-Khallad village, Nasser district, Beni-Suef Governorate, Egypt, aiming to determine the impact of various amendments with various two-tillage systems on certain properties of salt-affected soils, as well as the growth and productivity of fodder beet (Beta vulgaris L.). Different amelioration techniques were applied using soil conditioners (natural gypsum, cement dust modified, phosphogypsum, and filter mud) that were carried out under two tillage systems, namely, shallow and deep (subsoil). The results show that subsoil tillage decreases bulk density and penetration resistance by about 7.75 and 13.6% and increases total porosity and hydraulic conductivity by about 7.31 and 7.7% over shallow tillage, respectively. increase available water by about 1.51 %, reduce pH, decrease ECe by about 12.47 %, decrease ESP by about 10.44 %, and increase soil organic matter by about 6.25 %, as well as increase the fresh yield of roots and shoots by about 22.75 and 34.32 %, respectively. The corresponding increases for dry roots and tops yields were 21.75 and 22.45%, respectively, for the nutrient uptake of fodder beet plants. The relative increment in total N, P, and K uptake reached 28.58, 29.27, and 30.87%, respectively. Treated fodder plants cultivated in salt-affected soil with soil conditioners, especially filter mud, at a rate of 18 Mg ha-1 resulted in a decreased hazardous effect of salinity by improving soil properties, which consequently increased its productivity.
Fayoum Journal of Agricultural Research and Development, 2018
A field experiment was conducted on clayey soil at Kom Abou-Khallad village, Nasser district, Ban... more A field experiment was conducted on clayey soil at Kom Abou-Khallad village, Nasser district, Bani-Suef Governorate, Egypt during the winter season of 2014/2015. This study was conducted to identify the effect of applied vermicompost at rates 2.5, 3.3 and 4 Mg fed -1 , magnetite at rates 100, 150 and 200 k.g fed -1 and Sugar industry wastes (a mixture of the Filter Mud and Sugar lime wastes with a ratio of about 1:1) at rates 6.7, 10 and 13.3 Mg fed -1 as either solely or combined treatments, on some soil properties as well as the vegetative growth, nutritional status and yield of wheat (Triticum aestivum L. cv Bani-Suef 5). The suitability class of the used irrigation water is C3S1 (ECiw = 2.08 dS/m and SAR= 7.12) for Baha drainage water. The obtained results of the investigated soil indicated that, the values of EC, ESP and pH, were decreased with application of vermicompost, magnetite and sugar industry wastes. These decreases varied from treatment to another, the best treatment was found to be (T 10 = filter mud + sugar lime (1:1) w/w (13.3 Mg fed -1 ) and T 13 = filter mud + sugar lime (1:1) (6.7 Mg fed -1 ) + vermicompost) as compared to the other combined or solely ones. However, the treatments effect on OM% and CEC have the opposite trend since their combination caused increase of OM and CEC values. Also, application of vermicompost, magnetite and Sugar industry wastes were more pronounced in decreasing soil bulk density, and increasing both hydraulic conductivity, total porosity and soil moisture content values. The obtained data emphasized that the achieved enhancing soil properties were positively reflected on the nutrient contents of plant tissues and plant parameters. (grain and straw yields). So that, it could be recommended that applications of vermicompost, magnetite and sugar industry wastes should be used to alleviate the hazardous effects of a saline soil or saline irrigation water. In addition, such favourable conditions should be enhance continuous biological activity and nutrients slow release along the growth stages of wheat plants, and in turn to minimize their possible losses by either leaching or volatilization processes. This approach represents a best
Fayoum Journal of Agricultural Research and Development, 2018
ABSRACT A field experiment was conducted on clayey soil at Kom Abou-Khallad village, Nasser distr... more ABSRACT A field experiment was conducted on clayey soil at Kom Abou-Khallad village, Nasser district, Bani-Suef Governorate, Egypt during the winter season of 2014/2015. This study was conducted to identify the effect of applied vermicompost at rates 2.5, 3.3 and 4 Mg fed-1 , magnetite at rates 100, 150 and 200 k.g fed-1 and Sugar industry wastes (a mixture of the Filter Mud and Sugar lime wastes with a ratio of about 1:1) at rates 6.7, 10 and 13.3 Mg fed-1 as either solely or combined treatments, on some soil properties as well as the vegetative growth, nutritional status and yield of wheat (Triticum aestivum L. cv Bani-Suef 5). The suitability class of the used irrigation water is C3S1 (ECiw = 2.08 dS/m and SAR= 7.12) for Baha drainage water. The obtained results of the investigated soil indicated that, the values of EC, ESP and pH, were decreased with application of vermicompost, magnetite and sugar industry wastes. These decreases varied from treatment to another, the best treatment was found to be (T10= filter mud + sugar lime (1:1) w/w (13.3 Mg fed-1) and T13= filter mud + sugar lime (1:1) (6.7 Mg fed-1) + vermicompost) as compared to the other combined or solely ones. However, the treatments effect on OM% and CEC have the opposite trend since their combination caused increase of OM and CEC values. Also, application of vermicompost, magnetite and Sugar industry wastes were more pronounced in decreasing soil bulk density, and increasing both hydraulic conductivity, total porosity and soil moisture content values. The obtained data emphasized that the achieved enhancing soil properties were positively reflected on the nutrient contents of plant tissues and plant parameters. (grain and straw yields). So that, it could be recommended that applications of vermicompost, magnetite and sugar industry wastes should be used to alleviate the hazardous effects of a saline soil or saline irrigation water. In addition, such favourable conditions should be enhance continuous biological activity and nutrients slow release along the growth stages of wheat plants, and in turn to minimize their possible losses by either leaching or volatilization processes. This approach represents a best strategy in agriculture field that has a long-term positive agronomic value and an effective practice of fertilization management on long-term.
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Papers by Ali G A M A L Abd El-Tawab