Zubkova T.V., Vinogradov D.V., Gogmachadze G.D.

Efficiency of non-root treatment with microfertilizers in the cultivation of spring rapeseed

The aim of the research was to evaluate the effectiveness of the effect of foliar fertilizing with microfertilizers on the yield and quality of oilseeds of spring rapeseed. The research was conducted in 2018-2019 under the conditions of the field experience of the Bunin Yelets State University. In crops of spring rape varieties Reef determined the effects of micronutrients Yara Vita Brassitrel and of a mixture of micronutrients Yara Vita Brassitrel and Yara Vita Bortrak. Yara Vita Brassitrel is a water-soluble fertilizer in the form of a powder, which includes Mg, S, B, Mn, Mo. Yara Vita Bortrak is a liquid fertilizer with a maximum concentration of boron. Non-root fertilizing with these fertilizers was carried out in the phases of 4 real leaves and stalking. There were no differences in the onset of the development phases of spring rapeseed depending on the use of microfertilizers Yara Vita Brassitrel and Yara Vita Bortrak. The positive effect of the studied microfertilizers on the biometric parameters of spring rapeseed was established. The use of the studied micronutrients contributed to the increase in activity clorofila clorofila a and b, carotenoids, the amount of pigments and leaf area assimilating the surface of plants of spring rape. Application of micronutrient fertilizers Yara Vita Brassitrel contributed to the growth of additional plant productivity 1,34 t/ha, a mixture of micronutrients Yara Vita Brassitrel + Yara Vita Bortrak 1,96 t/ha, with yields on the control option 16,25 kg/ha.

Keywords:SPRING RAPESEED, MICROFERTILIZERS, YIELD, BIOMETRIC INDICATORS, NON-ROOT PROCESSING