不同的油菜田除草剂,其杀草谱、使用浓度及方法都不尽一致。因此,在使用时,必须全面了解除草剂的性能,方能够因草施药。 一、乙草胺 对于直播油菜田,在油菜播种后出苗前,每亩用50％乙草胺乳油75毫升,对水30～40公斤,进行土壤喷雾。在看麦娘1叶期防效最佳,超过1叶1心期除草效果明显下降。对于板茬移栽油菜田,最好在水稻收获并及时清理田间后,随即施药。每亩可用50％乙草胺75毫升,对水30～40公斤,进 Different rapeseed herbicides, the herbicide spectrum, the use of concentration and methods are not the same. Therefore, when used, we must fully understand the performance of herbicides, can only be applied herbicide. A, acetochlor live rapeseed field, rapeseed sowing before emergence, per acre with 50% acetochlor EC 75 ml, 30 to 40 kg of water, soil spray. In the first stage to see Amargine best anti-leaf effect, more than 1 leaf 1 heart weeding effect decreased significantly. For stubble transplanting rape fields, it is best to harvest in rice and timely clean up the field, and then spraying. Available 50% acetochlor 75 ml per acre, 30 to 40 kg of water, into