Effect of herbicides self different concentration to control ( Cyperus rotundus L.)

Abstract

Weed control experiments with pots were conducted during summer growing season 2008-2009 to study the use herbicides self different concentrations: first concentration for herbicides Glyphosate302.25, Topic 30.75, Focus ultra 145gm a.i/ha) and the second factor is concentration for herbicides Glyphosate 604.5, Topic 61.5, Focus ultra 290gm a.i/ha). High concentrations at all herbicides were gave good result in reducing; plant growth cyperus rotundus, number of leaves ,dry weight of shoot, size and number of tubers. Specially herbicides Glyphosate for second concentration was excelled on herbicides Topic and Focus ultra in reducing number leaves, dry weight of shoot,size and number of tubers, and dry weight of roots