Which herbicides are effective when transplanting onions
1. The main action of weed control (also known as Shitianbu and pendimethalin) is to inhibit the division of meristems and not affect the germination of weed seeds. It is mainly used to control valerian, crabgrass, green foxtail, bluegrass, and lotus root. , weeds and other weeds. Before the onion is transplanted or after the seedlings are transplanted, the herbicide is sprayed with 33% of weeding emulsifiable concentrate 100-150 ml per acre and 30-40 kg of water per acre.
Second, 43% of Alachlor EC is a selective pre-emergence herbicide, which is absorbed by weeds and causes the buds to stop growing and dying.
Before transplanting the onion, use 43% of Alachlor EC per acre 200ml, watered 40-50 kg evenly sprayed on the surface, and then use the dumplings to dig the soil and then plant the seedlings. If the mulch is applied after application, the dosage should be reduced by 1/3-1/2. The main prevention and treatment of annual grass weeds and some broadleaf weeds, the effect is significant.
Third, paraquat is a selective absorption of conductive herbicides. It can penetrate deep into the body from the roots and stems of weeds, causing the weeds to dry up and die. This drug is low toxic to humans and animals. Before planting seedlings, use 50% paracetamol WP 100 g water 50 kg spray, or 50% paracetamol WP 50 g and 50% fennel EC 100 ml mix, water 50 kg spray, mainly control Annual single, dicotyledonous weeds.
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