COST-EFFECTIVE EFFICIENCY OF USE OF COMPLEX FERTILIZERS AND FERTILIZER MIXTURES

Issue № 6, 2015, article № 10, pages 60-64

Section: Problems of efficient management

Language: Russian

Original language title: ЭКОНОМИЧЕСКАЯ ЭФФЕКТИВНОСТЬ ИСПОЛЬЗОВАНИЯ КОМПЛЕКСНЫХ УДОБРЕНИЙ И ТУКОСМЕСЕЙ

Keywords: SPRING WHEAT, COMPLEX FERTILIZERS, MIXED FERTILIZERS, LOCAL AND MAIN FERTILIZATION, NET INCOME, PROFITABILITY

Abstract: The results of the field experiment in Nizhny Novgorod region have allowed to make a comparative evaluation in the effectiveness of using of various industrial complex fertilizers (ammophos, diammophoska, NPK-fertilizer, NPK, nitroammophoska) and mixed fertilizers on the basis of ammophos, ammonium nitrate and potassium chloride on the spring wheat subjected to local fertilizer at sowing or plowing as the main fertilizer. For local fertilizing the fertilizer mixture with the N:P:K ratio of 1,3:1:1 was used, and for plowing - with a ratio of 2:1:1 and 2:1:2, aligned for all variants in a dose of phosphorus 16 and 40 kg/ha, respectively. It was found that the optimal ratio of nutrients for main fertilizing of the spring wheat is 2:1:1, which gives a yield increase of 26‰ compared to the yield on the unfertilized control at 2.43 t/ha. Use of fertilizer mixtures consisting of macrofertilizers with increased dose of nitrogen (1.3 times) for presowing use provides a profitability level of 12.4‰, significantly outperforming the nitroammophoska, diammophoska and NPK. The use of mixed fertilizers with a high content of nitrogen and potassium for primary tillage is more economically efficient than the use of complex fertilizers. It allows to raise the profitability of spring wheat production in 6,5-8,8 times and increase the conditional net income (from 180 to 1554 rubles/ha).

Authors: Titova Vera Ivanovna, Tikhonov Andrei Aleksandrovich