EFFICIENCY OF FERTILIZER APPLICATION WAY AT CULTIVATION OF MIDDLE-EARLY MATURING POTATO VARIETIES ON GRAY FOREST SOILS OF FOREST-STEPPE ZONE OF MIDDLE VOLGA

Author:

Гайнутдинов ,Gaynutdinov Marat,Владимиров ,Vladimirov Vladimir,Чекмарев ,Chekmarev Petr

Abstract

The studies revealed the role of fertilizers application method, under the influence of which there was a significant increase in the productivity of potato. Fertilizers, carried in local way, increased the photosynthetic activity of potato plants. The maximum leaf area at flowering stage, depending on the variety, increased to 1.4-2.5 thousands square metre per hectare. The highest leaf area of 50.1 and 47.7 thousands square metre per hectare for both methods of mineral fertilizers was on the plant of Nevskiy variety. Local application of fertilizers by two ribbons increased the productivity, depending on the variety to 2.19-3.10 tons per hectare. The most high-yielding variety was Nevskiy, which, depending on the fertilizers application method, carried 34.65 and 36.84 tons per hectare tuber yield. The Nevskiy variety tubers, depending on the mineral fertilizers application method, contained starch 13,85-14,64%, Adretta variety – 15.68-16.02 and Valiza variety contained 14.44-15.01% of starch. More protein was at tubers of varieties Valiza variety (3.34-3.71%), the lower (2.87-3.11%) at Nevskiy one. The largest shareware net income (127.8 thousands rubles per hectare) and high level of profitability (137%) was obtained at the cultivation of Nevskiy variety with locally application of mineral fertilizers.

Publisher

Infra-M Academic Publishing House

Reference10 articles.

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