Russian Federation
Russian Federation
UDC 631.828
UDC 633.34
The provision of zonal soils of the Central Chernozem region with mobile forms of sulfur is presented. Experimental studies have been conducted on the effectiveness of the use of sulfur-containing fertilizers in the system of mineral nutrition of soybeans cultivated on soils with a low content of mobile sulfur. Fertilizers with sulfur improve mineral nutrition when cultivating soybeans, increase the height of plants according to experimental options from 2.2 and up to 6.6 cm. Quantitative indicators of the structure of the soybean crop are increasing, such as the number of beans per plant, the water content of the bean, the weight of grains per bean and the weight of 1000 grains. Fertilizers with sulfur increase the structure of the soybean crop to the greatest extent on dark gray forest soil with a minimum content of mobile sulfur (1.19 mg/kg). An increase in the yield of soybean grain from the introduction of sulfur-containing fertilizers has been established. Ammonium sulfate at a dose of 2.3 c/ha increases the yield of soybeans in comparison with the control on dark gray forest soil by 0.48 t/ha, including at the expense of sulfur by 0.24 t/ha, on typical chernozem by 0.39 t/ha, including at the expense of sulfur by 0.19 t/ha. Complex fertilizer NPKS (15-15-15-10) at a dose of N45P45K45S30 on dark gray forest soil increases yield by 0.64 t/ha, including due to sulfur 0.17 t/ha, on typical chernozem by 0.56 t/ha, including due to sulfur by 0.13 t/ha. Fertilizers with sulfur increase the protein content to 1.69% and vegetable fat to 0.77%.
zonal soils of the CCR, mobile sulfur, soybean productivity, fertilizers with sulfur, protein, vegetable fat
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