Title: Mineral Fertilizers Influence On Some Characteristics Of Winter Wheat
Abstract: The article presents materials on the influence of the calculated doses of mineral fertilizers on the degree of development, the prevalence of diseases (root rot, powdery mildew, pyrenophorosis) and the yield of winter wheat on leached chernozem in 2016-2018.As a result of the research, it was found that the degree of development and the prevalence of root rot of Fusarium etiology depended on the resistance of the variety and the dose of fertilizers.In all periods of accounting, the calculated doses of fertilizers by 7.5 and 10 t/ha increased the prevalence and degree of development of the disease relative to control.When the doses of N 186 P 95 K 45 and N 248 P 133 K 60 were applied, the prevalence of powdery mildew exceeded the control by 8.7-6.0 %, and pyrenophorosis -by 8.9-10.9%.Variety Dolya proved to be more resistant to root rot and pyrenoforosis compared to other varieties, variety Vassa -to pyrenophorosis and powdery mildew.On all varieties of winter wheat, on average for 2016-2018, the calculated doses of mineral fertilizers relative to the control increased the yield by 1.6-5.36t/ha.The planned yield level of 5.0 and 7.5 t/ha was achieved for all varieties, the planned yield level of 10.0 t/ha was not achieved.