Estudo da aplicação de sega circular em sulcadores com dupla aiveca.

Abstract

High weed infestation and stubble-mulch are one of the highest problems of minimum tillage system. The main of this paper were to try solving this difficulty. Lister botton was made with two opposed moldboard and one front rolling coulter. The depth of the furrow and the rolling coulter are adjustable, having a tension spring. We observed that the lister botton with two opposed mold board without the rolling coulter, has not practice applicability, on high weed infestations and stubble-mulch. The lister botton with the rolling coulter worked very well to open furrow, without influence of weed infestation, and stuble-mulch, depths of furrow and rolling coulter.