Dynamics of nitrogen, phosphorus and potassium content in spring wheat plants during the growing season depending on growing conditions

Abstract

The article presents the results of studying the dynamics of the content of the main nutritional elements (nitrogen, phosphorus, potassium) in spring wheat plants during the growing season depending on the growing conditions. It has been established that under conditions of high content of available phosphorus and potassium in the soil, the main indicator determining the yield of spring wheat grain is the nitrogen content in plants. Grain yield at the level of 60–75 c/ha with a protein content of 14–16 % and gluten of 29–38% is formed with the nitrogen content in spring wheat plants – in the phase of 1 node 3,80–4,90 %, in the flag leaf phase – 2,00–2,70 %, heading – 1,60–2,10 %, milk ripeness – 1,60–1,70 %..