There are three technical points to master the use of herbicides , as follows: 1. Sanzhun: the time of application, the amount of application, and the area of ​​the applied plot. Spray 30-40 kg of liquid medicine on one mu of land, and apply it at 10 o'clock in the morning and after 5 o'clock in the afternoon. 2, four look: look at the seedlings, grass, weather, soil application, not rooted or thin seedlings are not easy to apply, according to the type and growth of weeds, when the temperature is low, the upper limit of application, the wind speed is greater than 4 meters / Seconds (leaves and micro branches swing, the banner unfolds) do not spray, the soil with high viscosity and organic matter content is higher, the sandy soil is used less, and the soil can not be closed when the soil is dry. 3, five no: weak seedlings, seedlings do not apply medicine, paddy field water is less than 3 cm or water depth flooded heart leaves do not apply, soil is too dry or air humidity is less than 65% when no application, heavy rain, field water or No application is applied when there is dew on the leaves, and no application is applied during the sensitive period of the crop. More pesticide knowledge , please pay attention to China Pesticide Network Temperature Controller,Digital Temperature Controller,Multiway Temperature Controller,Temperature Instrument Yuyao Gongyi Meter Co.,Ltd. , https://www.yycj.com