1. Alachlor. Also known as Lasso: Otrasuo, grass is not green, is a systemic soil treatment agent, except cucumber, leeks, spinach should not use this drug, other vegetables can be used. Before sowing or before transplanting, 300-500g of medicine can be used per 667 square meters, 40~50kg of water can be sprayed evenly, and then sown or transplanted with shallow soil. If the 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 treatment of 1 year old grasses and some broadleaf weeds.
2. Fluorine. Trifluralin is a broad-spectrum, contact-killing and systemic herbicide. Because of its wide range of weeding and good effect, it is especially popular among farmers. Vegetables such as kidney beans, kale, lettuce, carrots, etc. can generally be treated with soil before sowing. Use 48% of Fluramine Emulsifiable Oil 150-200g per 667 square meters, add 75-100g of water and mix well. Then spray evenly with sprayer. Immediate colonization can also play a role in mixing soil. Matters needing attention: 1 Fluorine is easy to photolysis, volatile, should be mixed in time after spraying, otherwise it will easily reduce the efficacy. The main mechanism of action of flurin is to affect the growth and transmission of weed hormones and inhibit cell division. However, weeds cannot be inhibited from germination and therefore cannot kill dormant weed seeds.
3. Shi Tianbu. It is a high-efficiency, low-toxic, broad-spectrum herbicide for aniline. It is used for direct seeding vegetables such as Chinese cabbage, kale, cauliflower, leeks and shallots. Before germination, it is used with 33% emulsifiable concentrate of 100-125ml per 667 square meters. 35kg soil surface spray, and then watering, for cabbage, cauliflower, eggplant, green pepper, lettuce, tomato and other transplanted vegetable fields, before transplanting or transplanting slow seedlings, use 33% emulsifiable concentrate 100-150ml per 667 square meters, Spray 40 to 50 kg of water. Note: 1 Avoid direct contact between seeds and crop growth points and the drug layer when applying. 2 vegetables used before seeding after sowing should pay attention to increase the amount of seeding, especially small seeds should be planted in soil below 2cm or cover a thin layer, but live watermelon can not be used.
4. Saikejin. Also known as sike, oxazin, oxazinone, and lycide, it is a selective, low-toxic and high-efficiency herbicide for trinitrobenzene. Before transplanting tomato seedlings, use 70% WP 40-50g per 667 square meters. Spray on the surface of water 35~40kg; before the sowing of the potato, use 70% wettable powder 50-75g per 667 square meters, spray about 40kg of water on the soil surface. Note: It has a certain effect on grass weeds, but it is not effective for perennial weeds.
5. Grass is dead. It is an amino acid ester selective pre-emergence soil treatment herbicide. It can be used to control weeds in various vegetables such as sweet potato, cucumber, tomato, celery, broccoli, spinach, kidney bean, lettuce, radish and potato. Generally, before planting or before transplanting, use 200g of 50% emulsifiable oil per 667 square meters, spray 40~50kg of soil surface, or evenly mix 15~20kg on the fine tide, and mix 2~3cm soil layer in time.
6. Acetochlor. It is a broad-spectrum high-efficiency, dry field, selective pre-emergence herbicide, high-efficiency control of weeds, foxtail, crabgrass, maiden and other grass weeds, and a variety of small-grain seed propagation such as medlar, leeks, medlar, purslane, and dodder. Broadleaf weeds are suitable for weeding in a variety of vegetables. Generally, after the vegetable land is well prepared, before the sowing of the vegetables, the weeds sprouting period, using 48% emulsifiable concentrate of 75-85 ml per 667 square meters, adding 50 kg of soil surface spray, and then sowing.
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