一、施用时间。一般情况下，施用除草剂要在雨季之前，因这时土壤较湿润，气温较高，杂草萌发生长快，中毒速度也快，除草效果好，但各种除草剂性能，作用方式和处理方法不同，还需分别确定具体施用时间。 　　二、施用方法。最好在施用除草剂前，将原有杂草除掉，然后灌水 First, the application time. Under normal circumstances, the application of herbicides before the rainy season, because at this time the soil is moist, the temperature is higher, weeds germination and growth fast, poisoning speed is also fast, good weeding effect, but a variety of herbicides performance, mode of action and approach Different, but also need to determine the specific application time. Second, the application method. It is best to remove the weeds prior to application of the herbicide and then irrigate