Chemical weeding is a common method of weeding in vegetable fields. Chemical herbicides are inseparable from herbicides. If herbicides are used blindly, they can easily cause herbicide harm. The following is the use of a variety of herbicides in vegetables for reference. 1. Alachlor. Also known as Rasso: Austrasso, grass is not green, is a suction-type soil treatment agent, in addition to cucumber, leeks, spinach should not use the drug, other vegetables can be used. Before sowing or before transplanting, 300 to 500 g of medicine can be used per 667 square meters, 40 to 50 kg of water, evenly sprayed, and sowed or transplanted after using shallow and mixed soil; if the plastic film is covered after application, the dosage should be reduced appropriately. (about 1/3 to 1/2), it has a significant effect on the prevention and control of 1-year-old grasses and some broad-leaved weeds. 2. Trifluralin. Trifluralin is a broad-spectrum, contact-killing, and endo-absorption herbicide because it has a wide range of weed control and good results, and is particularly preferred by farmers. Vegetables such as kidney beans, cabbage, lettuce and carrots can generally be treated with soil before sowing, 48% trifluralin EC 150-200g per 667 square meters, and water is mixed thoroughly with 75-100g, and then evenly sprayed with a sprayer and sprayed. Immediate colonization can also play a role in mixing soil. Note: 1 Fluoride is easy to be photolyzed and volatile, and the soil should be mixed in time after spraying, otherwise it is easy to reduce the efficacy. 2 The main mechanism of action of trifluraline is the growth and transmission of hormones that affect weeds and inhibit cell division. However, it does not inhibit the germination of weeds and therefore cannot kill dormant weed seeds. 3. Shi Tianbu. It is a highly effective, low-toxic, broad-spectrum herbicide of aniline. For live vegetables such as pakchoi, cabbage, cauliflower, leeks, shallots, etc., before seeding, every 667m2 is treated with 33% EC and 100 to 125ml, plus water 30~ 35kg soil surface spray, and then watering, transplant cabbage, cauliflower, eggplant, green pepper, lettuce, tomatoes, etc., before transplanting or after transplanting, use 33% EC of 100-150ml per 667 square meters, Spray 40 to 50kg of water. Precautions: (1) Avoid direct contact between seed and crop growth points and drug layer during application. 2 After sowing, the vegetables used for pre-emergence treatment should pay attention to increase the seeding volume. In particular, the small seeds should be sown on the soil or cover 1 layer below 2cm, but the live watermelon cannot be used. 4. Seckin. It is also known as Saiko, Herbacrazin, Trimetin, and Rikner. It is a triazine selective low-toxic and highly effective herbicide. Before transplanting tomato seedlings, it uses 70% wettable powder 40-50g per 667 square meters. , 35 ~ 40kg of water on the surface of the table spray; before sowing potato seedlings, with 667 square meters with 70% wettable powder 50 ~ 75g, about 40kg water surface soil spray. Precautions: There is a certain effect on the weeds in this family and it is not valid for perennial weeds. 5. Grams died. It is an amino acid ester selective pre-emergence herbicide for soil treatment. It can be used to control weeds in various vegetables such as sweet potatoes, cucumbers, tomatoes, celery, broccoli, spinach, beans, lettuce, radishes, and potatoes. In general before vegetable sowing or transplanting, every 667 square meters with 50% EC 200g, 40 ~ 50kg of water on the surface of the table spray, or mix fine tide of 15 ~ 20kg evenly spread, mixed in 2 ~ 3cm soil layer. 6. Acetochlor. It is a broad-spectrum, high-efficiency, dry field, selective pre-emergence herbicide, which effectively controls the weeds of grasses, Setaria viridis, crabgrass, Aphid goji, etc., as well as various small-grained seeds such as alfalfa, leeks, alfalfa, purslane, and dodder seed. Broad-leaved weeds for weed control in a variety of vegetables. Generally, after the vegetable fields are well-prepared, before the vegetables are sown and the weeds are germinating, 48% EC is applied to 75 to 85 ml per 667 square meters, and 50 kg of water is sprayed on the soil surface before sowing. Tablet Supplement,Zinc Tablet,Buccal Tablet,Compound Vitamin B Tablet Weihai Baihe Biology Technological Co., Ltd. , https://www.biohighnutraceutical.com