| In many agricultural systems around the world, competition of weeds is one of the major factors reducing crop yield. This research was carried out to study the performance of mechanical methods for weed control, mechanical damage, yield and yield components of three bean genotypes in 2012 and 2013 cropping seasons. The experiment carried out as split plot arrangement based on complete block design with three replications in Agricultural and Natural Resources Research and Education Center in Markazi Province, Iran, Arak. The experimental treatments were comprised of three bean lines and varieties including Sadri, KS-21189 and COS16 as main plots and four mechanical methods of weeds control including: sweep type weeder, rotary type weeder, rolling... |
