Keywords: soybean, water regime, sprinkler irrigation, irrigation regime, irrigation rate, irrigation rate, yield, economic efficiency, profitability
Мелиорация.– 2025. – №1 (111). – P 5–12
The results of field experiments on the efficiency of sprinkler irrigation in soybean cultivation for grain presents. It was found that due to the uneven distribution of precipitation, additional moisture is required in both dry and wet years. The irrigation rate varies from 600 m3/ha in a wet year to 1800 m3/ha in a dry year. Calculation of the economic efficiency of irrigation showed that the maximum profit of 1047 rubles is observed in the variant with the lower limit of soil moisture regulation of 80 % of the NW, while the profitability is 58.26%. The average increase in soybean grain yield in this variant is 9.4 c/ha.