ON THE TECHNOLOGY OF CULTIVATING SPRING WHEAT ON ORDINARY CHERNOZEM IN KRASNOYARSK FOREST-STEPPE

Abstract

The purpose of research is to develop an effective technology based on assessing the impact of reducing energy costs for soil cultivation with an increase in the use of chemicals (fertilizers and herbicides) on the productivity of different varieties of wheat. Based on the results of many years of research at the laboratory of varietal agricultural technologies of the Krasnoyarsk Research Institute of Agriculture, an assessment was made of the effect of surface tillage using the BDM-6 “Rubin” disc harrow and milling, without main treatment, on the yield of 4 varieties of spring wheat in comparison with traditional technology based on moldboard plowing (control ). The harvest was formed under harsh weather conditions, which limited productivity to 0.6–3.6 t/ha. The energy coefficient with minimal processing using ammonium nitrate was 4.8 and with direct sowing without the use of mineral fertilizers it was 4.4. This circumstance necessitates the need to expand methods of soil preparation for sowing, especially after the use of minimal tillage. As an experiment, the surface of the soil was milled with FBN 1.1 for high-quality sowing using a disc seeder SN-16. Treatment with a milling cutter was carried out after the scattering of ammonium nitrate. In general, resource-saving technologies (sowing after disking and sowing without main tillage before milling) reduced production costs by 11–13 %, and fuel consumption decreased by 42–43 % compared to technology based on plowing. Carrying out pre-sowing treatment with a milling cutter guarantees complete cleansing of the soil from early weed shoots; control is carried out using a UAV (unmanned aerial vehicle). Differences in yield levels between tillage options are insignificant; NSR05 was 0.4 t/ha. And the influence of mineral fertilizers, well mixed with the soil in the surface layer using a milling cutter, has increased sharply.