Herbicide is an insecticide and an agricultural chemical used to kill weeds and harmful plants. Weeding will not affect the normal growth of crops. Its main function is not only to control weeds in the field, reduce nutrient consumption in the soil, but also to kill shrubs outside the cultivated land.
What kinds of herbicides are there? There are many kinds of herbicides, which are mainly divided into five types: soil treatment agent, contact herbicide, conductive herbicide, stem-leaf treatment agent and stem-leaf combined soil treatment agent. Different varieties can have different uses, both before sowing and during crop growth.
How to use herbicides When using herbicides, we should choose appropriate pesticides according to different weeds to ensure the safety of crops. Dilute the pesticide with clear water, control the dosage and concentration, put it in a sprayer and spray it on weeds to avoid the pesticide standing on the stems and leaves of crops as much as possible. When there are many weeds in the field, pesticides can be mixed.
Influencing factors of herbicides The main influencing factors before the use of herbicides are related to the growth period of weeds and environmental temperature. It is best to use it before weeds are unearthed or just germinated. After the weeds emerge completely, they have certain resistance to herbicides, and the pesticide effect is poor. In addition, the optimum temperature of herbicide is between 20-35℃, too high or too low will reduce the effect of herbicide.