Which herbicides can be used to control weeds in growing tobacco?

Which herbicides can be used to control weeds in growing tobacco? Please introduce that the seeds of tobacco are small, the seedlings grow slowly, and they are often damaged by weeds. The main weeds are: Setaria mandshurica, Artemisia angustifolia, paspalum barnypalum, sophora officinalis, sedge, pig calamity, plantain, dandelion and so on. The control of weeds in tobacco field can be divided into seedbed control and field control. And 50% diachlor wettable powder is the best choice to control weeds in tobacco field. According to the efficacy tests done by some pesticide control institutes, the comprehensive fresh weight control effect of 50% diachlor wettable powder on weeds in tobacco field is more than 90%, and the harm of weeds to tobacco is basically controlled. According to the different growth period of tobacco field, the specific usage and dosage are different: 1. When controlling weeds in seedbed, soil treatment before sowing is generally used, that is, 3-5 days before sowing, the dosage is 100g / 667m2, 50kg is mixed with water, spray evenly on the surface of border soil after fully shaking, rake and mix soil with 5cm depth and sow immediately after sowing. 50kg with water, shake well and spray on the surface. 2. When controlling weeds in tobacco field, the soil can be treated before seedling transfer. 3-5 days before seedling transfer, 50% diachlor wettable powder 100~200g/667m2 and water 50kg are evenly sprayed to rake the depth of 5cm in the soil surface of the whole field within 3-5 days, and then transfer the seedlings immediately. In addition, it can also be sprayed after seedling transplantation. within 5-7 days after seedling transfer, tobacco seedlings have survived with 50% diachlor wettable powder 100~150g/667m2 mixed with water 50kg evenly sprayed on the surface of the seedling belt. 50% of the wettable powder of diachlor has high activity, the dosage is only half of that of Dahuili, and the safety factor is higher. The growth and development of tobacco seedlings is safe, and the effect of increasing yield is significant. after application, the soil is adsorbed and will not be washed away or leaked by Rain Water. The half-life in soil is 15 days and there is no environmental pollution. It is safe for the use of crops and subsequent crops such as wheat, cotton, soybeans, peanuts and so on. However, sugar beet, celery, sorghum, corn, fennel and other crops are sensitive to diachlor, and the field should not be planted within 3 months. Click to get more tobacco planting techniques click to get more flower planting techniques