In developing countries, agricultural development is not backward. From the previous manual weeding to chemical weeding, acetochlor is the most common herbicide and a low-toxic herbicide. It is the most important in the world. One of the herbicide varieties is also one of the most widely used herbicides in China. Therefore, it is necessary to help pesticide Xiaobian tell you about we often use but can not remember its name acetochlor:
Acetochlor is suitable for:
It is widely used in crops and is suitable for crops such as soybeans, oilseeds, peanuts, corn, cotton, and vegetables. Acetochlor is a selective pre-emergence herbicide , which is mainly absorbed by the hypocotyl of the monocotyledonous coleoptile or dicotyledonous plant, and is absorbed upward after absorption, inhibiting cell growth mainly by blocking protein synthesis, and making weed sprouts The growth of the young roots stops and then dies. Gramineous weeds have stronger ability to absorb acetochlor than broadleaf weeds, so the effect of controlling weeds is better than that of broadleaf weeds.
The best time for acetochlor:
Acetochlor is a pre-emergence soil treatment that is sprayed on the soil surface before emergence of the crop before and after seeding. Gramineous weeds are absorbed by the roots, broad-leaved weeds are absorbed by roots and shoots, and the agents absorbed into the body can perform nucleic acid metabolism and protein synthesis. The young shoots, the young roots stop growing and eventually die. It can last for about 2 months in the soil.
How to use acetochlor:
Soybean field: spring soybeans in the northeast use 90% acetochlor EC 120-150 ml per acre, spring soybeans in North China use 90% acetochlor EC 100-120 ml per acre, and summer soybeans in North China 90% acetochlor per acre 80-100 ml of emulsifiable concentrate, topsoil spray before emergence or after sowing.
Corn field: 20 % acetochlor EC 120-150 ml per mu in spring maize, 90-120 ml acetaminophen emulsifiable concentrate per acre in spring maize in North China, 90% acetaminophen per acre in summer maize in North China 80-100 ml of amine emulsifiable concentrate, 60-80 ml of 90% acetochlor EC per acre in the corn field of the Yangtze River Basin and South China, and topsoil spray before emergence or after sowing.
Peanut field: Spring peanuts in North China use 90% acetochlor EC 100-120 ml per acre, summer soybeans in North China use 80% acetochlor EC 80-100 ml per mu, and 90% per acre in the Yangtze River Basin and South China 60-80 ml of acetochlor EC, topsoil spray before emergence or after sowing.
Cotton field: 80-100 ml of 90% acetochlor EC per acre in the film-covered cotton field in North China, 100-120 ml of 90% acetochlor EC per mu in the mulch covered cotton field in Xinjiang, topsoil spray before or after seeding . The amount of drug used in the open field cotton field was 30% higher than that in the film-covered cotton field. Cotton fields are exposed to low temperature and high humidity after application of acetochlor. The growth of cotton seedlings may be slightly affected. Generally, growth can be resumed after sunny days.
Potato field: 100-140 ml of 90% acetochlor EC per acre, topsoil spray before emergence or after sowing.
Rapeseed field: transplanted rapeseed field in the Yangtze River Basin and South China, using 60-80 ml of 90% acetochlor EC per acre, topsoil spray before transplanting or transplanting. The live rapeseed field in the north is 100-120 ml of 90% acetochlor EC per acre, and the topsoil spray before emergence or after sowing.
Sugarcane field, garlic field: 80-100 ml of 90% acetochlor EC per acre, topsoil spray before or after planting.
The amount of acetochlor sprayed should generally be 20-25 kg. When the soil is dry, it should be applied after irrigation, or 4-6 cm after application, to ensure the efficacy.
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