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禾耐斯是一种选择性芽前除草剂，对禾本科杂草有较好的防除效果，我县已广泛应用于花生、大豆、芝麻等阔叶作物田禾本科杂草的防除。但它能否在小麦田应用，尚无科学依据。为此，自１９９７年始，我们在本县看麦娘杂草发生严重的稻茬麦田进行了该项试验。１ 材料与方法１．１?
Wo Naisi is a selective pre-emergence herbicide, grass weeds have better control effect, our county has been widely used in peanuts, soybeans, sesame and other broad-leaved crops, grass weeds control. But whether it can be applied in the wheat field, there is no scientific basis. To this end, we have conducted this experiment since 1997 when we observed the serious rice crop in the weed weeds. 1 materials and methods 1.1?