A NANOPREPARATIONS EFFECT ON SPRING WHEAT PRODUCTIVITIES UNDER THE CONDITIONS OF THE WATER-AIR REGIME REGULATION OF SODDY-PODZOLIC SOIL

Abstract

The effect of nanopreparations on the productivity of spring wheat under different water regimes of drained gleyic light loamy soddy-podzolic soil was studied. The use of new generation biological agents to increase the productivity of cultivated crops, prevent degradation processes, preserve and expand the reproduction of soil fertility made it possible to determine their effect on the yield and quality of spring wheat with bilateral regulation of the water-air regime of the soil. The use of humic preparations with nanoparticles BoGum-N and fulvohumate "Ivan Ovsinsky" both separately and against the background of a high-tech fertilizer developed by VNIIMZ - multi-purpose compost (KMN), contributed to an increase in yield. During a three-year experiment (2019-2021), a mathematically proven yield increase was obtained in variants with nanopreparations relative to the control. On average, over three years, the yield of spring wheat on non-irrigated variants with nanopreparations BoGum-N and fulvohumate "Ivan Ovsinsky" was 24.1 and 23.9 c/ha, in the control - 20.1 c/ha. Under irrigation with nanopreparations and in the control variant, the yield was 28.2 c/ha, 27.8 c/ha and 23.2 c/ha, respectively. The highest productivity of wheat over the years of research was provided by irrigation options with nanopreparations against the background of KMN. This had a positive effect on enhancing the effect of the tested drugs. On irrigated variants, on average over three years, the increase in yield with foliar treatment with nanopreparations was 18-20% in relation to the KMN. During the experiment, almost the same effect of the studied nanopreparations on the productivity of spring wheat was revealed. Under the conditions of bilateral regulation of the water regime of the soil, the influence of biological agents on the quality of wheat was assessed. Variants with nanopreparations against the background of KMN were distinguished by increased protein content, both watering and without it. When drained, the protein content in wheat grain averaged 12.2%, in variants with irrigation - 11.8%.