I. Early rice seed processing 1. Antimicrobial soaking: to prevent bakanae and dry acanthosis in rice, use 10% dithiocyano methane (soaking seed) EC 1 pack (2 ml), add 5-6 kg of water, stir well and dip 5 Kilograms, seed soaking and draining after 72 hours, germination sowing. To prevent rice bakanae and rice blast, use 25% prochloraz (to 100g) EC 1 kilogram (2ml) to add 6 kilograms of water, 5 kilograms of rice can be soaked, soaking time 48-72 hours, direct germination after soaking . 2. Seed Dressing: To prevent the damage of rice seedlings in rice seedling stage, imidacloprid seed dressing technology can be used. After soaking in rice, remove 10% imidacloprid WP from 2-3 grams with a small amount of water and stir in the rice after soaking. Seed dressing and then germination. II. Chemical weeding in Waseda field 1. Weeding in direct seeding field: 2-4 days after sowing, use 40% benzamidine (live green, live-net) 45-60 grams per acre, add 30 kilograms of water evenly, and keep the field moist after treatment. In the 2-3 leaf stage of seedlings, weeds will be drained at the 2 leaf stage, and 25% rice japonica (or 10% of milk) will be used for 40-60 grams of emulsifiable concentrate, 30 kilograms of water will be sprayed against water, and weeds and grass will be controlled. Weeds. 2. Transplanting and machine weeding and weeding: 6-7 days after the transplanting machine can be applied in combination with fertilization. The 50% butyl benzyl herbicide 80-100 g/mu can be used, and the water within the field can be 5-7. Days, Tianshui can't overwhelm. Waste water Enzymes,enzymes in waste water,sewage treatment plant enzymes Sunson Industry Group Co., Ltd , https://www.sunsonchinaenzymes.com