EVALUATION OF FUNGICIDE APPLICATION EFFECTIVENESS TO BARLEY IN EAST KAZAKHSTAN
The data are given on the effectiveness of using fungicides against leaf spot in barley under conditions of East Kazakhstan. It has been established that the preparations tested reduce the infection rate of plants by 50.8-74.1 %. The use of fungicides positively influences forming yield structure of barley that results in increasing grain yields. The application of preparations increase barley productivity by 0.17- 0.44 t/ha with the conditional net profit varying from 9 to 57.2 USD/ha. The most effective preparations against leaf spot in barley are Zenon Aero (0.75 l/ha) and Folicur (0.7 l/ha). Their use provides high biological effectiveness (74.1 and 72.8%), obtaining additional grain yields of 0.41 and 0.44 t/ha and the conditional net profit of 51.1 and 57.2 USD/ha, respectively.