The specific cleaning of agricultural chemicals

Small-scale agricultural medical equipment such as mist sprayers and atomizers should be cleaned immediately after spraying, especially after using highly toxic pesticides and various herbicides, they should be immediately cleaned in the medicine barrel, otherwise the crop or vegetables would be damaged. It will produce poison. For example, the day before the use of "long-effect Ling" pesticide spray cotton, and the day after the day in the case of not cleaning the same medical equipment, but also use the "quick kill Ding" spray vegetables, so that the poisonous pesticide residue in the barrel of the drug sprayed to the vegetables On the herbicides that have long-lasting leaf plants, there are broad-leaved plants, and if they are not clean during use, they can easily harm different types of plants when used alternately. Therefore, the sprayer, mister, etc. must not be washed after use. Specific cleaning methods: 1. Pesticides (1) After the general pesticides are used, wash them repeatedly with clean water and dry them upside down. (2) For highly toxic pesticides, they can be washed repeatedly with muddy water and used to dry them upside down. 2. Herbicides (1) Water cleaning: Herbicides commonly used in wheat fields such as superstars (tribenuron), herbicides in the corn field such as ethylene mixture, soybeans, herbicides in the peanut field, such as herbicides, and herbicides in rice fields. After the hit, Bendason, etc., need to immediately clean the barrel and parts with water several times, and then fill the sprayer with fresh water for 2 to 24 hours, and then clean it 2-3 times, then you can use it with confidence. (2) Slurry cleaning: For the king of the track (commonly known as a sweep of light) can be passivated in case of soil, lose the principle of herbicide activity, so after the herbicide without trace, just as soon as the sprayer with muddy water several times to clean Wash it with water again. (3) Scrubbing with ferrous sulfate: Among herbicides, only 2,4-D butyl ester is the most difficult to clean. After spraying the herbicide, 0.5% ferrous sulfate solution should be used to fully wash, and then the cotton, peanut and other broad-leaved crops should be tested for safety before re-applying other herbicides.