在大面积的韭菜生产中依靠人工除草,往往因为除草不及时,造成草荒,严重影响韭菜生长,而采用相应的化学除草剂,科学用药,节省大量人工,能显著提高经济效益。1.播种前或播种后苗前除草技术韭菜籽的种皮厚,不易吸水,出苗慢,春季播种,一般需要15￣20天才能出苗。而一般杂草则发芽快 In a large area of ​​leek production by artificial weeding, often because weeding is not timely, resulting in grass shortage, seriously affect the growth of leeks, and the use of the corresponding chemical herbicides, scientific medication, saving a lot of labor, can significantly improve economic efficiency. 1. Sowing before or after planting seedling weeding technology Seedling thick, easy to absorb water, slow emergence, sowing in the spring, the general need 15 ~ 20 days to emerge. The general weeds germinate fast