Effectiveness of microbiological preparations, growth stimulants and fertilizers in winter wheat crops on ordinary chernozem

The paper presents the data from two field experiments on the effect of microbiological preparations, growth stimulants and fertilizers on the yield and quality of grain of various varieties of winter wheat. In the first experiment, the following biological products were studied: Extrasol, Rostock and water-soluble fertilizers Aquamix, Aquarin 5 and Aquarin 9 on winter wheat varieties Niva Stavropolya in crops according to forecrop of black fallow and Victoria 11 in crops according to the forecrop oil flax. It was found that the highest yield had Niva Stavropolya variety - 5.59 t / ha and in Victoria 11 variety - 3.97 t / ha, as well as the best grain quality were formed with the combined application of fertilizers and biological products in the following combination: P₆₀κ₄₀ before sowing (according to forecrop black fallow) and N₆₀P₆₀K₄₀ (according to forecrop oil flax) + N₃₀ for tillering + + N₃₀ for heading. At the same time, before sowing, it is advisable to use the water-soluble fertilizer Aquamix (0.1 l / t) for seed treatment, -Aquamarine 5 (2 l / ha) and for the treatment of vegetative plants in tillering and Aquarine 9 (2 l / ha) for heading. In the second experiment, the effect of microbiological preparations Emistim / biostim, Rizoagrin, Flavobacterin, Extrasol and growth regulators Rostok and Gumat on the productivity of soft winter wheat varieties Yuka and Grom in crops after the forecrop black fallow was studied. It was found that the highest yield of the variety Grom - 9.24 t / ha was provided by Emistim and Yuka variety - 9.03 t / ha Humat growth regulator.