Effect of biological products on productivity of winter wheat on various backgrounds of nutrition in conditions of Donetsk oblast

Abstract

The purpose. To determine efficiency of specimens of biological origin at growing winter wheat on various backgrounds of nutrition in conditions of Donetsk oblast. Methods. Field, added by analytical researches, measurements, counts and observation according to the standard techniques and methodical recommendations in plant growing. Results. Researches were carried out in 2015–2017 in field rotation of SE «OX» Zaboishchik» Donetsk state agricultural experimental station of NAAS». Scheme of experiments provided presowing treatment of seeds with biological products in day of sowing, sprinkling of sowings in stages of tillering and heading. In the control they treated seeds and sowings with water. At the moment of harvesting on both backgrounds of feed the best parameters of crop structure was formed in the alternative with joint application of specimens Sizam and Rost-concentrate. The greatest productivity of grain of winter wheat on the 1-st background of feed (N30P30) was at complex use of specimen Sizam and at its joint application with specimen Rost-concentrate — 6,08 and 6,12 t/hectare, the increase in comparison with the control made 1,18 and 1,22 t/hectare. On the 2-nd background of feed (N60P60) the greatest productivity was gained at complex use of specimen Sizam — 6,86 t/hectare (the increase in comparison with the control made 1,55 t/hectare). Calculation of economic feasibility of use of biological products at growing winter wheat testifies to significant efficiency of use of backgrounds of feed and probed specimens. On the 1-st background of feed the highest profitableness was gained at treatment of seeds and sowings with specimens Sizam and Rost-concentrate (271,2%). On the 2-nd background of feed the highest level of profitableness was at complex use of specimen Sizam (296,8%). That alternative had the highest economic parameters in researches. Conclusions. Application of biological products irrespective of background of feed effectively influenced growth of plants of winter wheat, and parameters of structure of crop have considerably improved. The greatest productivity of grain and the highest level of profitableness were gained on the 2-nd background of feed (N60P60) at complex use of specimen Sizam — 6,86 t/hectare (increase in comparison with the control made 1,55 t/hectare) and 296,8%.