Palamarchuk O. Productivity of winter wheat depending on predecessors and stand density in the Right-Bank Forest-Steppe of Ukraine

In the thesis justified recommendations for the production of relatively economically and energetically expedient of growing new varieties of winter wheat after the optimal predecessors at the reasonable seeding rate in the Right-Bank Forest-Steppe of Ukraine, which will increase the production of high quality agricultural products. In terms of Right-Bank Forest-Steppe Ukraine in black and typical large silty medium clay to loess the first time implemented comprehensive agrotechnical assessment predecessors – peas, corn silage, soybean, buckwheat seed, winter rape, depending on the variety – Poliska 90 Podolyanka, Myronivska 65, Smuglyanka, and seeding rate of winter wheat: 4 million units. seeds/ha; 4.5; 5 and 5.5 million units. seeds/ha. Established substantial at 53.2 %, increase yield of winter wheat Smuglyanka by seeding rate of 5 million units. seeds/ha after predecessor buckwheat. As a result of researches recorded increased economic and energy efficiency of winter wheat varieties Smuglyanka after predecessor buckwheat with seed rate of 5 million units. seeds/ha., which achieves winter wheat yield 7.4 t/ha with profitability of 112.2 % and the coefficient of energy efficiency Kee=4.09.