Machine for ploughing stubble field - has rows of discs of non-circular perimeter and curved cross=section

摘要

A stubble field is ploughed by a machine which has groups of discs with each group mounted on a common shaft. Each disc has a curved but non-circular perimeter and a curved cross-section so that one face is concave and the other convex. The discs are made from heat treated steel or any other material of similar strength. The discs may be placed in any position relative to each other. USE/ADVANTAGE - These discs break up the soil in such a way that drainage is improved, and avoid the formation of a hard surface layer.