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 >>  . C 03.00.00

631.8:631.445 ղ̲ ̲ 1 .. Գ ...

97

631.8:631.445

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.. Գ

쳿 ..

(yaroslava.filimonchuk@mail.ru)

. ( ) , ( ). . (N90, N90P90 N90P90K90), (P90).

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ᒺ . 2011 . .-. , , .. 98 ISSN 0587-2596. . 2015. 83

   

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( ), ' . , -3 N90P90 N90P90K90. 63 100 % . -3 16,0 20,8 / . , , , , , .

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100 ISSN 0587-2596. . 2015. 83

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8. .. / .. // . 1975. 6. . 76-82.

9. . , , : 31-497058-019-2005.

㳿 18.05.2015

EFFECT OF AGROCHEMICAL BACKGROUND OF CHERNOZEM TYPICAL AND FERTILIZERS ON

MINERAL NUTRITION OF BUCKWHEAT PLANTS

Ya.S. Filimonchuk NSC Institute for Soil Science and Agrochemistry Research named after O.N. Sokolovsky

(yaroslava.filimonchuk@mail.ru) Knowledge of the basic regularities of plant nutrition allows regulating their nutritional profile. By changing the chemical composition of substances that are supplied in the plants, their number and time, it is possible to increase yield, enhance growth, improve the chemical composition and quality of the resulting products and increase plant resistance to adverse environmental conditions. In this context, the aim of our study was to investigate the influence of agrochemical background of chernozem typical on mineral nutrition of buckwheat plants in the main phases of ontogenesis in the conditions of growing experience.

Methods. After growing experiment in plant samples were determined nitrogen and phosphorus by wet ashing. Results. It was determined by research that on all investigated agrochemical backgrounds the most intense absorption of nitrogen was observed at variants of nitrogen fertilizer application (var. N90, N90P90 and N90P90K90). Mineral fertilizers on agrochemical backgrounds played a significant role in changing the phosphorus content in buckwheat plants during the growing season, but the greatest impact was the application of phosphorus fertilizer (var. P90), which increased the accumulation of macronutrients in the green mass. It was found that the largest increase in yield of buckwheat green mass, which amounted to 81% (compared to control), defined in option N90P90K90 on the agrochemical background with the application of phosphate fertilizers in stock. Conclusions.The data indicate positive impact effect of agrochemical background on mineral nutrition of buckwheat plants by the effect of recent application fertilizer.

Key words: fertilizers; chernozem typical; agrochemical background; nitrogen; phosphorus; ontogeny of buckwheat plants.

631.442 : 631.82 /.85 : 633.16

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