Nutrient content and its removal with winter wheat plants depending on fertilizer application

The results of the study of the effect of mineral fertilizers, the aftereffect of manure and the combined effect on the yield and quality of winter wheat grain are presented. The positive effect of fertilizer doses and combinations on yield was found, since the proportion of dispersion determined by these factors was 95% with a correlation degree of 0.98. Rational doses and combinations of fertilizers have been determined - N150P120K120 following the aftereffect of 80 t/ha of manure to provide a yield of 5.97 t/ha. The content of nitrates in grain and winter wheat straw depended on the use of fertilizers and this indicator increases with saturation of fertilizers. So if in the control sample without fertilizers in the grain and straw of winter wheat nitrates contained 17.2 and 208.9 mg/kg, respectively, then in the maximum fertilized sample (N150Р120 K120 + manure 80 t/ha (the aftereffect)) its content increased to 27.7 and 486 mg/kg respectively. Thus, the content of nitrates in the straw is tens of times greater than in the grain, which can be associated, in our opinion, with existing protective mechanisms that limit the flow of toxicants and excess nutrient to the generative organs of plants. The removal of NPK by winter wheat products varies depending on the fertilizer doses and crop yield. Over the years of research, the greatest removal of nitrogen by grain is observed when applying mineral fertilizers at a dose of N150P120K120, and phosphorus and potassium when they are applied on the aftereffect of manure. The greatest nutrient content removal by straw was noted in the samples with the introduction of a double dose of mineral fertilizers following the aftereffect of manure. It was found out that winter wheat grain removes more nitrogen and phosphorus, and straw - potassium.