胡萝卜田化学除草,一般采用土壤处理剂,因此在胡萝卜籽撒播前就必须考虑除草剂的使用问题。常用的使用方法有播前土壤处理法和播后苗前土壤处理法。播前土壤处理法是整好地以后,还没有撒播胡萝卜籽以前,按标准亩用量将除草剂对好水后喷洒于地表,一般每亩对水50公斤(常用的背负式手动喷雾器四桶水),喷后要用钉齿耙、圆盘耙或旋转耙等将表土耙混2次,耙深以8厘米为宜。这样就可使药剂均匀分 Carrot field chemical weeding, the general use of soil treatment agent, so before sowing carrot must consider the use of herbicides. Commonly used methods are pre-sowing soil treatment and sowing pre-emergence soil treatment. Before sowing soil treatment method is well, before sowing carrot seeds before, according to the standard amount of acres of herbicides on the water sprayed on the surface, generally 50 kilograms of water per mu (commonly used knapsack sprayer four barrels of water ), Spraying after use toothed rake, disc harrow or rotary rake will top soil rake mixed 2 times, Rake deep to 8 cm is appropriate. This will make the medicament evenly divided