Organic farming elements influence on Sphera soybean variety productivity under the Primorsky region conditions

The paper presents the results of studying the effect of green manure crops and fertilizers on the productivity of soybean plants of the Sfera variety in the conditions of the Primorsky Region. The purpose of research: to study the effect of adaptive practices on the productivity of soybeans in the conditions of the Primorsky Region. Research objectives: to study the effect of potassium humate and the drug Vostok EM-1 on the productivity and yield of soybean plants on the productivity and yield of soybean plants when sown with a green manure predecessor; evaluate the effect of the studied techniques and draw appropriate conclusions. The experiment was laid on the experimental field of the Primorsky State Agricultural Academy (GSHA) in 2021 on an area of 2.5 hectares. Records and observations were carried out in accordance with the Methodology of State Variety Testing of Agricultural Crops. Experience scheme: 1. Control (without fertilizers); 2. Potassium humate; 3. Vostok EM-1; 4. Potassium humate + Vostok EM-1; 5. Green manure precursor oats + potassium humate + Vostok EM-1. As a result of research, it was found that when sowing soybeans on a green manure predecessor with treatment with potassium humate and Vostok EM-1, the productivity of one plant was 8.2 g, which is 1.8 g higher than the control. Treatment of plants with potassium humate increases the yield of soybeans by 15 % compared to the control variant, Vostok EM-1 - by 12 %. Joint treatment with potassium humate and Vostok EM-1 leads to an increase in yield from 3.20 to 3.90 t/ha, which corresponds to 22 %. The best result is provided by the application of fertilizers when sowing soybeans according to the green manure precursor, where the yield is 4.16 t/ha, which is 30 % higher than the control, protein harvest increases by 383.9 kg/ha, oil - by 78.2 kg/ha.