DOI 10.36461/NP.2024.69.1.016
UDC 633.63+631.82

NITROGEN, PHOSPHORUS AND POTASSIUM CONTENT IN THE PEA GRAIN DEPENDING ON THE LEVEL OF MINERAL NUTRITION AND FOLIAR FERTILIZER APPLICATION
V.V. Koshelyaev, Doctor of Agricultural Sciences, Professor;
N.V. Shabyshev, Postgraduate
I.P. Koshelyaeva, Doctor of Agricultural Sciences, Associate Professor
V.A. Gushchina, Doctor of Agricultural Sciences, Professor
Federal State Budgetary Educational Institution of Higher Education "Penza State Agrarian University", Russia, tel. 8(8412) 62-83-73, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract. This article presents the results of the investigation of the effects of foliar fertilization on the nitrogen, phosphorus and potassium content of pea grains at different levels of mineral nutrition. The correlation relationships between the weight of 1000 grains and the content of the main macronutrients, expressed in relative and absolute values, are examined. The purpose of the study is to determine the optimal combination of simultaneous application of root and foliar nutrition, which provides a high content of the main macronutrients in the grain as an indicator of the best conditions for plant growth and development. As a result, it was found that it is permissible to focus on the indicator of the absolute content of the main macronutrients in the pea grain when evaluating the conditions for plant growth and development. This indicator shows a strong correlation with grain weight. It can be seen that the highest weight of 1000 grains is formed at all mineral nutrient levels when the plants are treated with Biostim Universal at a rate of 2.0 l/ha during the stemming and budding stages. The grains formed in these variants of foliar fertilization had the highest levels of nitrogen, phosphorus and potassium, depending on the level of mineral nutrition.
Keywords: peas, foliar feeding, mineral nutrition, macronutrients, grain, nitrogen, phosphorus, potassium.

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