The dissertation provides a theoretical generalization and offers a new practical solution to the scientific problem, which is to study the complex action of precursors,
sowing dates and foliar feeding on yields and sowing qualities of seeds of soft winter wheat varieties.
The best precursor for seed crops is green manure, and the sowing date is September 15 and 25. Thus, during the sowing on September 15 on the sidereal pair
the wheat variety Trudivnytsia Myronivska formed the maximum average yield of 7.41 t / ha, and on the soybean predecessor the maximum yield was formed by the
variety MIP Valencia for sowing on September 25.
Under the predecessor of soybeans were obtained slightly worse parameters of the mass of 1000 seeds. However, at the time of sowing 15.09 and application of
foliar fertilization Aminomax-N - 1 l / ha + MERISTEM NPK 20: 20: 20 + mix - 2 kg/ha in the phase of milk ripeness in the variety MIP Vyshivanka weight of 1000
seeds was 45.1 g, in the variety Trudovnytsia Myronivska - 44.9 g, MIP Valencia - 46.0 g, MIP Knyazhna - 44.3 g, Myronivska Slava - 44.2 g. And for growing after sidereal steam for the period of sowing 15.09 and the use of foliar fertilization in the variety MIP Vyshivanka weight of 1000 seeds was 46.0 g, in the variety Trudivnytsia Myronivska - 47.2 g, MIP Valencia - 47.8 g, MIP Knyazhna - 47.1 g, Myronivska Slava - 46.8 g.
It was found that the variety Trudivnytsia Myronivska belongs to the highly plastic yield, and therefore responds well to improving conditions cultivation forming an increase in seed yield and is recommended for cultivation on high agrophones with intensive cultivation technologies. In varieties MIP Valencia, MIP Knyazhna and Myronivska Slava there is a differentiated transition depending on the indicator from highly plastic to widely adapted manifestations of symptom formation.
It was investigated that for growing wheat after pure steam, for sowing 15.09 and fertilizing crops Aminomax-N - 1 l / ha + MERISTEM NPK 20: 20: 20 + mix - 2 kg / ha in the phase of milk ripeness received a net profit from the sale of seeds of the variety MIP Vyshivanka 42.15 thousand UAH, Myronivska Trudovnytsia - UAH 53.58 thousand, MIP Valencia - UAH 47.16 thousand, MIP Knyazhna - UAH 43.25 thousand and Myronivska Slava - UAH 44.23 thousand.
The best values of energy efficiency were obtained at sowing 15.09 with fertilization Aminomax-N - 1 l / ha + MERISTEM NPK 20: 20: 20 + mix - 2 kg / ha in
phase of milk ripeness. Under such conditions, the KEE of the MIP Vyshivanka variety was 2.27, Trudovnytsia Myronivska - 2.67, MIP Valencia 2.64, MIP Knyazhna - 2.20 and Myronivska glory - 2.20. And here the predecessor of sidereal steam provided KEE for a grade of MIP Vyshivanka 1,86, Trudovnitsa Mironovskaya - 2,17, MIP Valencia 2.00, MIP Knyazhna - 1.89 and Myronivska Slava - 1.92.
Key words: winter soft wheat seeds, varieties, yield, sowing qualities, stability and plasticity, bioenergetic evaluation.
