Formation of yield and sowing qualities of winter wheat seeds under the influence of microfertilizers in the soil and climatic conditions of the forest-steppe of western Ukraine

Abstract

The present study investigated the effect of chelated forms of microfertilizers applied in the tillering-shooting phase on the background of mineral nutrition (N90P90K90) with the phased application of nitrogen in stages IV and VII of organogenesis on the seed productivity and the sowing qualities of seeds of the winter wheat variety Benefis. The studies were conducted according to the generally accepted methods. The processing and synthesis of research results were performed using Microsoft Excel. The obtained data were processed by the method of dis¬persive and correlation analysis. The experimental results confirm that the use of chelated forms of microfertilizers contributes to winter wheat seed productivity. Grain yield increases by 0.12 -0.34 t/ha, the yield of conditioned seeds – by 2-6%, seed yield increases by 0.20-0.71 t/ha, the coefficient of seed reproduction – by 0.8-2.9 units, the mass of 1000 seeds – by 0.3-1.8 g. The optimal level of plant nutrition at the expense of better assimilation of trace elements has a positive effect on the formation of sowing qualities of winter wheat, increasing the mass of 1000 seeds by 0.6-2.8 g, seed germination energy – by 1.8-6.3%, laboratory germination – by 0.8-3 0%. The highest ef¬ficiency was obtained with the application of the complex microfertilizers Orakul copper chelate (1-2 l/ha), Orakul biocobalt (0.15-0.20 l/ha) and Orakul multicomplex (1-2 l/ha).