近年来，油菜、小麦等午季作物苦害严重，对午季粮油生产构成严重威胁。要使午季作物丰产丰收，草害防派是重要一环。1．免新麦田成油菜田除草在播种前每亩用Ic％草甘磷400～5O（毫升，或25％克芜踪150～25O毫升对水4O千克喷雾，2～3天后再播种。2．直接田除草直播油菜或条播麦 In recent years, rapeseed, wheat and other mid-season crops have suffered severe bitterness and posed a serious threat to the production of grain and oil in the mid-afternoon. To make the harvest of mid-season harvest of crops, grass-pest prevention is an important part. 1. Free of wheat field into rape field weeding in the acre before planting with Ic% of glyphosate 400 ~ 5O (ml, or 25% of the Wu Wu track 150 ~ 25O ml of water 4O kg spray, 2 ~ 3 days after sowing. Field weeding live rape or barley broadcast wheat