1. The activity of pesticide Hess is very high. Do not increase the dosage arbitrarily. At the same time, spray evenly to avoid heavy spray and leak spray. In the case of drought, it is recommended to use the upper dose, sandy soil, rainfall or irrigation, the lower dose is recommended. 2. Before the application of the soil, the soil surface should be fully and evenly leveled, and the soil particles should be too large to reduce the herbicidal effect. Do not flip the soil layer after application to avoid damage to the drug layer and reduce the control effect. 3, the soil is moist to facilitate the full play of the herbicidal effect of He Ness. If there is no 5-10 mm rainfall within 15 days after application, artificial irrigation is recommended to promote the seed germination and unearthing, and the agent is diffused to form a control layer to ensure the control effect of the seedlings and weeds. In rainy areas, pay attention to drainage after rain, and water in poor drainage after heavy rain. May hinder crop emergence or minor phytotoxicity. 4. The herbicide Hearns has a shelf life of 8-10 weeks in the soil. The weeds that grow after the application of Henas are mostly scattered, and because they are covered by the crops, they will not cause grass damage. 5, after the application of rainy days and low temperatures, some crops (such as soybeans) may show leaf chlorosis, slow growth or shrinkage, but as the temperature rises, it will resume growth, generally does not affect production. ZHITONG PIPE VALVE TECHNOLOGY CO.,LTD , https://www.ztongvalve.com