Particularity of formation of grain yield of spring wheat in the southern forest-steppe of the Omsk region

Minimum tillage in agricultural landscapes of southern forest-steppe, taking into account soil conditions and rational use of intensification resources allowto boost the crop capacity and to reduce the resource spend for increase in grain yield of spring wheat. Studies were conducted in the period of 2011-2014 to determine the productivity of crops of spring soft wheat medium early biotype in a long-term stationary rotation with alternating crop rotation: soybean - wheat - canola - wheat. A comparative evaluation of the effectiveness agricultural technologies, cultivation of spring wheat after canola predecessor with different intensity influence of tillage systems and means intensification. The soil of the trial plot is meadow-chernozem. It was found that without the use of intensification means there is a clear pattern to reduce grain yield when reducing the intensity of tillage with 1.81 on atalina option to 1.46 of 1.61 t/ha conservation or 19.3-11.0 per cent. When integrated application means intensification and increasing crop productivity of crops by 1.86 times (to 3.03 t/ha) or 85.6%. Found that harvesting spring wheat smallest preservation of plants (57.4%) was observed in the combined treatment of the soil on the version without the use of means of intensification, and the highest on disinfectant soil (68.1-70.2%). Integrated use of chemicals to a more optimum processing system for the preservation of plants of spring wheat was subsurface cultivator option to 68.1%, with the excess over dumped by 8.3%. In General, the use of means of intensification increase the safety of wheat plants with 63.4 to 66.8%. On the control (without of chemicals) grain yield of spring wheat is only 1.63 t/ha with the advantages depleted of variant tillage. At complex application of chemicals and increasing the productivity of culture to 3.03 t/ha grain yield on subsurface cultivator variant exceeds the combined option by 0.18 t/ha (6.1%).