The influence of the sowing coulters type on the seeding quality and the spring wheat yield

The paper presents data on the influence of the sowing coulters type on the seeding quality and the spring wheat yield in the conditions of the steppe part of Altai Krai. For the grain sowing, seeders are used with the most common types of the sowing coulters such as V-shaped, chisel and disk openers. The wheat was sown after the fallows, the peas and the wheat forecrops. The chisel openers provided the highest sowing quality of wheat seeds. Also the maximum efficiency of the spring wheat cultivation in the extra dry steppe conditions (2012) was achieved by the chisel sowing coulters. In the years with the moderately dry conditions (2006-2011) in the steppe the seeders with the various types of the sowing coulters do not significantly affect the yield structure constituent elements; to a greater extent it depended on the forecrops, the maximal wheat yield was obtained after the fallow.