The purpose of the study was development a front plow with angle clamps, which performs, smooth plowing. authors have developed an improved clamps. constructive scheme has been given. basic principles and methods classical mechanics, mathematical analysis statistics were used in this study. Experimental studies justified processing depth within limits 10-12. 5 cm width capture is range 7.5-10 c...

Soil quality is influenced by inherent and anthropogenic factors. This study was conducted to provide multiple groups guidance on how to achieve and maintain improved soil quality/health. Our hypothesis was that tillage intensity was the primary anthropogenic factor degrading soil quality, and our objective was to prove that hypothesis through an intensive 2005 sampling of a central Iowa, USA f...

Crop growth models can be useful tools in evaluating the impacts of di€erent tillage systems on the growth and ®nal yield of crops. A tillage model was incorporated into CROPGRO-Soybean and tested for conditions in Ames, IA, USA. Predictions of changes in surface residue, bulk density, hydraulic conductivity, runo€ curve number, and surface albedo were consistent with expected behaviors of thes...