Agriculture and forestry

Bogomaz Serhii Oleksandrovych is a graduate student of the Department of Agriculture, Soil Science and Agrochemistry of VNAU (21008, Vinnytsia, 3 Sonyachna St., e-mail).

The article presents the results of studies of fertilizers, plant density and peculiarities of corn hybrids to starch, protein and oil. It is established that the output of starch, protein and oil depends to a greater extent on the level of yield, which is noted on the variants of research and much less than the content of corn in starch, protein and oil. The highest starch output was noted for maximum intensification of technological techniques for cultivation of corn on the version of the experiment for compatible application of zinc sulfate, ecoline zinc and ecoline boron against the background of N100P31 in hybrids for increasing density from 60 to 80 thousand plants/ha: DCS 3795 - 6.18; 6.39; 6,29; DKS 3972 - 6,93; 7.19; 6.91 t/ha; SCS 4351 - 6,93; 6.74; 6.25 t/ha. This is higher compared to the control variant in the hybrid of DCS 3795 by 2.66; 2,85; 2.87 t/ha and the hybrid of the SCS 3972 for 3.12; 3,44; 3,18; In the hybrid of the SCS 4351 by 3.18; 3,01; 2.58 t/ha. This variant also noted the highest yield of protein in hybrids of DCS 3795 - 0,77; 0.79; DKS 3972 - 0,88; 0.90 t/ha. The thickening of crops up to 80 thousand plants/ha, led to a decrease in protein output, in particular in DCS 3795 - 0.76 and DCS 3972 - 0.85 t/ha. In the hybrid of the SCS 4351, the highest yield of protein was noted for the density of 60 thousand plants/ha - 0.88 t/ha, and for increasing the density of plants there was a gradual decrease in the output of protein, in particular at the density of 70 thousand plants/ha - 0.85 t/ha, and for density of 80 thousand thousand. Also in this embodiment there was the highest yield of oil in hybrids of DCS 3795 - 0,38; 0,38; DKS 3972 - 0,42; 0.44 t/ha. Thickening of crops up to 80 thousandplants/ha, led to a decrease in oil yield, in particular in hybrids of DCS 3795 - 0.37 and DCS 3972 - 0.42 t/ha. In the hybrid DKS 4351, the highest output of oil was noted for the density of 60 thousand plants/ha - 0.43 t/ha, and for the increase in the density of plants was a gradual decrease in oil yield at the density of 70 thousand plants/ha - 0.41 t/ha, and for the density of 80 thousand row/ha - 0.38 - 0.38. This is higher compared to the control variant in the hybrid of DCS 3795 - 0,15; 0,15; DCS 3972 - 0,17; 0,20; DCS 4351 - 0,18; 0,17 t/ha, respectively.of 80 thousand row/ha - 0.38 - 0.38. This is higher compared to the control variant in the hybrid of DCS 3795 - 0,15; 0,15; DCS 3972 - 0,17; 0,20; DCS 4351 - 0,18; 0,17 t/ha, respectively.

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