The influence of main soil treatment and green manure on the formation of soil moisture reserves and water consumption of soybean

The results of research on the formation a favorable water regime during growing season as one most important conditions for realizing existing potential soil fertility and obtaining stable crop yields under irrigation are presented. It was established that early spring moisture reserves in 0–100 cm layer 2021–2022 were quite high all variants main cultivation amounted to 166–177 mm. Under post-harvest sowing green manure, greater by 4.0–6.0 mm zero tillage first year 2.0–2.8 long-term untreated soil. When plowing depth 28–30 cm, more intense evaporation from surface not covered with mulch occurred, which led loss 10.0% moisture, while losses 8.0 6.4% options studied. use compared no manure background, provides productive pre-sowing period: — 2.0–5.4%, up 8.5% 6.0%, respectively. With fertilization system share used total consumption soybeans increased 5.7%. However, due density dark chestnut soil, observed no-till options, efficiency lower than plowed turn decrease yield. has been proven efficient ton soybean plowing, coefficient 1280 m3/t. tillage, higher reached 17%. buckwheat phacelia crops increases 5.0–10.0% 3.0–17.0%,