Reserves for increasing the productivity of spring rapeseed in the forest-steppe cultivated lands of Western Siberia

In Western Siberia, rapeseed is an important source of fodder protein, vegetable oil and feeds. In 2013-2017, in the southern forest-steppe zone in the stationary 4-field crop rotation of Omsk agricultural research center we studied five variants of chemicals using three soil treatment systems. When studying the technological methods of rapeseed cultivation for oilseeds, the optimal moisture reserves (169 mm) and a more economic coefficient of water consumption (119 mm/t) were manifested on the sowing on resource-saving flat cut soil treatment. The maximum suppression of the weed component was noted in the variant of complex chemicalization with a decrease in the weeds biomass to a very low level of 2.9-3.6 % (by 14.4 times) without significant differences between the soil treatment systems with prevailing bluegrass and offset weeds. The combined application of herbicides, fertilizers and insecticides increased the yield of rapeseed oilseeds from 0.64 to 2.22 t/ha, or by 3...