Comparative evaluation of methods of sowing of spring wheat in forest-steppe of Western Siberia

Currently, the production conditions of introduction of modern crop com-plexes, which in a single pass is carried out several operations: cul-motivation of, harrowing, fertilizing, planting and packing of soil. They allow the farms to solve the problem of fuel and lubricants saving labor costs and improving production efficiency. Productivity agrophytocenosis crops will largely determine etsya cultivation technology, method of sowing and uniform distribution of seeds on depth and power areas [1; 2; 3; 4; 5]. Currently, the main grain regions of Siberia introduced a co-commited and productive domestic sowing complexes (SPC-2.1, "Ob 4-ST", "Concord-Kuzbass", "IPC-12»; Sower -360 ») and imported ( «Salford - 1203»; «Morris 3380;« johnDeere 2600 »;« GreatPlains 2220 »;« HorschATD-9,35 »et al.). Unfortunately, a comparative evaluation of technological methods of sowing crops in the Siberian agriculture is extremely limited [6; 7; 8]. It was found that a slight increase in the yield of grain crops at sowing modern complexes mainly due to a more uniform distribution of seeds on the power and the depth of field area. The main advantage - the improvement of technical and economic parameters and performance sowing. Our stationary experiments on the technology of cultivation of grain cul-round (tillage system, intensification means a precursor) sowing of spring wheat in recent years (2012-2015.) Is carried out sowing complex «Salford-1203", is being implemented in the Omsk region farms. Complex (width 9.1 m) at the same time carries out the cultivation, seeding disc coulters with 19 cm row spacing, alignment, and packing of soil rubberized rollers 10 cm wide. In comparing the 4-year period (2008-2011.) Sowing of spring wheat held domestic complex yell-diy (cultivator "Stepnyak-5.6" + sowing disc seeder SZ-3,6). The purpose of research - a comparative assessment of the various methods of pre-sowing spring wheat, to identify their impact on the density of seedlings, weed infestation and grain yield agrophytocenosis at various technologies of cultivation culture.