The correct method and precautions for using herbicides can help you create a green garden
1) Choose the right herbicide. When choosing herbicides, the appropriate type should be selected according to the weed species and soil environment, such as closed, post-bud and inactivated. In addition, care should also be taken to avoid choosing herbicides that contain harmful ingredients to crops, so as not to cause pesticide damage to crops.
2.Pay attention to the temperature. The effectiveness of herbicides is closely related to temperature, and is usually best between 10 degrees Celsius and 24 degrees Celsius. Therefore, herbicide application in environments where the temperature is too high or too low should be avoided, preferably before 10 a.m. or after 4 p.m.
3) Dosage control. When using herbicides, care must be taken to control the dosage and not overuse them so as not to damage the soil. For arable crops, about 30-50 ml of herbicide per acre is usually sufficient; For cash crops such as vegetables and flowers, the dose should be reduced accordingly.
4) Pay attention to the spraying time. When spraying herbicides, avoid situations where there is a lot of dew or low soil moisture content, as dew and soil moisture can affect the efficacy of the herbicide. The best time to spray is in the morning or late afternoon on a sunny day.
5) Pay attention to the spraying method. When using herbicides, the correct spraying method should be followed, generally"Hit big but not small, dense but not thin, wet but not dry"principles. should be followed"Hit big but not small, dense but not thin, wet but not dry"The principle of "big and not small" refers to the use of drugs after weeds grow for a period of time; Dense but not thin, refers to waiting for weeds to grow more or less before using medicine; Wetting but not drying refers to the use of medicine when the soil water content is high.
6) Mix properly. When using herbicides, sometimes it is necessary to mix two or more different types of herbicides, and attention should be paid to choosing the correct mixing method and ratio to avoid pesticide damage caused by improper mixing.
7) Pay attention to the application period. Different crops have different tolerances to herbicides, and the appropriate application period should be selected according to the growing season and growth of crops to avoid pesticide damage caused by early or late application.
8) Precautions must be taken to avoid damage. When using herbicides, they should be avoided before or after the crop has grown 3-5 leaves to avoid insect infestation. Herbicides should also be avoided when temperatures are too low, the soil is dry, or when strong winds blow.
9) Clean in time. After spraying herbicides, the sprayers and sprayers must be cleaned in time to prevent the residual herbicides from entering other crops and causing unnecessary losses.