Published in Scientific Papers. Series A. Agronomy, Vol. LXIV, Issue 1
Written by Vasily SHUMAEV, Andrey KALABUSHEV, Julia KULIKOVA, Alfiya GUBANOVA
The maximum yield of grain crops with good technological qualities of grain at minimum costs is directly related to the traction resistance of the unit and the exact distribution of seeds in depth and sowing area. The use of cultivator-cultivators for subsoil-spread sowing is more effective than conventional seeders, as it allows evenly distributing seeds over the sowing area, eliminating gaps between individual technological operations, shortens sowing times, better use of the first spring maximum of soil moisture, and compaction of loose soil with wheels of tractors and machines. The working bodies of serially produced seed drills for subsoil-spread stubble sowing do not fully meet the agrotechnical requirements, since their use in production revealed a number of disadvantages that seriously worsen the quality of work, especially with high soil moisture (more than 18%), due to soil sticking to working bodies and its mixing, which leads to roll formation and removal of wet layers to the surface of the field. In this regard, increasing the yield of grain crops and improving the quality indicators of sowing by using a coulter for subsoil-spread sowing is an urgent scientific and technical problem. Based on the research materials, prototypes of seeders with experimental stubble coulters were developed and manufactured. Studies of the developed seeding machines have shown stable performance in sowing grain crops.
[Read full article] [Citation]
