tailieunhanh - Review on pre and post emergence herbicides against weeds, yield attributes and yield of onion

Weeds are undesirable plants out of place and function as an uneconomic tax on the crop by taking the space required for the plant, absorbing the water and nutrients from the soil and by competing for other essentials like light, moisture etc. There are two methods generally employed for controlling weeds. viz., (i) Hand weeding, and (ii) Use of herbicides. In India, the first one is generally practiced by the farmers. This method is the most labour intensive and costly. | Review on pre and post emergence herbicides against weeds, yield attributes and yield of onion