Marushchak P. Improvement of technology cultivation and use of early matured soya varieties in right-bank of Forest-Steppe Ukraine.

Subject of inquiry - the regularities of yield level formation, its stability and seed quality as well as the nitrogen-fixing capacity depending on sowing terms, seed rates, the processing product use efficiency. The aim of research - the detection of details of productivity formation, its stability, protein and fat content in the new early-ripening soybean cultivars as well as in raising efficiency of processing product use of grown soybean. Details of the yield level and stability formation of the new early-ripening soyabean varieties on podzolized chernozem of the right-bank Forest-Steppe are revealed. Varietad differences for sowing terms, seed rates and features of the nitrogen-fixing capacity are established. The new soybean variety growing technology elements on podzolized chernozem of the right-bank Forest-Steppe are improved what ensured the increase in seed yield up to 5.2 hkg/ha at the yield level 26.0 hkg/ha that in protein and fat yield up to 2.69 and 1.25 hkg/ha accordingly, rise of additional biological nitrogen fixation up to 57 kg/ha as wll as raising efficiency of soybean processing product use in feeding of the total namber of pigs. The research results are introduced at the farms of the Bershadskyi district of the Vinnytsya region over an area 3540 ha. The field of application - the agricultural production.