ОЦЕНКА ЭФФЕКТИВНОСТИ НЕКОРНЕВОЙ ПОДКОРМКИ ЯРОВОГО ЯЧМЕНЯ УДОБРЕНИЕМ АГРИС АЗОТ

Abstract

The effectiveness of foliar fertilizing of Agris nitrogen on gray forest soils of Kama region of the Republic of Tatarstan was studied for three years. The studies were carried out with single and double treatment of plants with a water flow rate of 200 liter per hectare. With a single application, spraying with fertilizer was carried out in the tillering phase or in the earing phase of barley. When applied twice, the plants were treated in the tillering phase and in the heading phase. Agris nitrogen was used in different standards - 1, 2 and 3 liter per hectare. Twice treatment with Agris nitrogen of different consumption rates, in comparison with a single application, increases the number of grains in the ear. The use of Agris nitrogen did not have a positive effect on reducing the development of dark brown leaf spot, and during treatment in the heading phase, some stimulation of plant damage was noted. Agris nitrogen provided a significant increase in productivity under the influence of application. Twice treatment with Agris nitrogen with norms of 2 and 3 liter per hectare increased productivity by about 25%. At the same time, an increase in the accumulation of nitrogen in plants is noted, the economic removal of macronutrients increases, and the protein’s content in the grain increases. The maximum net income from 1 hectare was obtained by applying Agris nitrogen twice as top dressing with a norm of 2.0 liter per hectare, but by the level of profitability, options with spraying in the tillering phase with norms of 2-3 liter per hectare were distinguished. Given the increase in yield and an increase in the protein content of grain, the optimal option for feeding Agris nitrogen on spring feed barley was double feeding with a norm of 2.0 liter per hectare.