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Soil Science and Agrochemistry

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Diagnostics of nitrogen nutrition of spring wheat on highly cultivated sod-podzolic light loamy soil

Abstract

The data of diagnostics of nitrogen nutrition of spring wheat on highly cultivated soil are presented. A close relationship between crop yield and grain quality and nitrogen content in soil and plants has been established. The greatest number of conjugated indicators was revealed in the phases of flag-leaf and earing of spring wheat. The optimal parameters of these indicators allowing to obtain the yield of spring wheat at the level of 60 and more c/ha are determined: the content of mineral nitrogen in plants in the phase of the flag leaf is not less than 200 mg/kg, in the earing – not less than 270 mg/kg; the content of total nitrogen in the first node-not less than 3,3 %, in the flag leaf – more than 1,8 %.

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Kulesh O.G., Mezentseva E.G., Semenenko N.N., Simankov O.V. Diagnostics of nitrogen nutrition of spring wheat on highly cultivated sod-podzolic light loamy soil. Soil Science and Agrochemistry. 2021;(1):60-72. (In Russ.)

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ISSN 0130-8475 (Print)