APPLICATION OF HERBICIDES IS A RESERVE TO IMPROVE THE QUALITY OF SPRING RAPSEED OIL SEEDS UNDER CONDITIONS IN SOUTH AREAS OF THE NON-BLACK EARTH ZONE
The results of the current research deal with the effect of the complex application of antidicotyledonous and anticereal herbicides on the chemical and qualitative composition of spring rapeseed oil seeds under conditions in the south areas of the Nonchernozem zone. It was found that the applied combinations of herbicides by reducing competition from weeds increased the nitrogen content in oilseeds and did not have a statistically confirmed effect on the accumulation of phosphorus and potassium. The absolute removal of nitrogen against the background of herbicides increased 1.5 times, phosphorus - 1.3, potassium - 1.4 times. According to the level of the main macronutrients removal by rapeseed, they could be represented as following N > K2O > P2On5. The decrease in weediness led to an increase in the protein content in rapeseed oil seeds by 9%. The reverse pattern was observed for the accumulation of fat. In the control, its concentration was higher by 5%. When using herbicides, the collection of crude protein and fat per unit area depended on the crop yield and in all years of research was the largest on Etamaster + Miura (47% and 67%) and Etamaster + Zelor (40% and 61%).