48% trifluralin and 50% acetochlor are suitable for weeding before sowing. 48% trifluralin can effectively control grass weeds that reproduce by seeds one year, such as crabgrass, goosegrass, etc., and can also control broadleaf grasses with small seeds. Seed Chinese herbal medicines are sprayed with Chinese traditional herbicides in 48-50 % trifluralin 80-100 ml watered 40-50 kilograms per acre before sowing. Turn the soil 5-7 cm. The 50% acetochlor emulsifier mainly stops the growth of weed seedlings and roots. It has special effects on a variety of annual grass weeds, and it also removes some of the small-grained seeds of broadleaf grasses. 50% acetochlor EC should be applied before sowing of Chinese herbal medicine or 10-15 days before transplanting and before weeding. Spray the surface soil evenly with 40-60 kg of water per acre with 70-75 ml.
20% grams of traceless water and 47% of Roundup water are suitable for weeding before sowing after sowing of Chinese herbal medicines. It takes 10-30 days for germination of Chinese medicinal materials such as Bupleurum, Radix et al. Incontinent water 150-250 ml watered 25-30 kg, or watered 30-40 kg with 41% Rounda water 150-200 ml, in the weeds to see the green before the emergence of Chinese herbal medicines have not yet sprayed, remove the miscellaneous grass. However, after the emergence of Chinese herbal medicines, do not use these two kinds of medicaments to avoid killing Chinese herbal medicine seedlings.
6% Kecaoxing EC and 8% Lazurin can be suitable for weeding after emergence of Chinese herbal medicines. 6% Kecaoxing EC has a good control effect on annual broad-leaved weeds, and also has a significant inhibitory effect on perennial weeds. It is suitable for herbicides such as Coix seed, Ophiopogon japonicus and Vicaster. Each mus of 6% Kecaoxing 70-80 ml of water 30-40 kg, sprayed at an average height of 5 cm below the weeds. 8% high-efficient herbicide can be applied for a long period of time and has a broad spectrum of weed control. It can effectively control annual weeds such as goosegrass, crabgrass and green grass, bermudagrass, and Rhizoma Imperatae. It is suitable for broadleaf herbs. Such as Radix, Pinellia ternate, Arctium, Atractylodes and other weeding. In general, 25-30 ml of water is mixed with 20-30 kg of water per acre, and the stem-leaf spray treatment is performed with a fan-shaped nozzle at the weed 3-6 leaf stage.
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