The dry direct seeding rice was established from the seeding to the seedlings at the 3 leaf 1 heart stage to establish a water layer, and the alternate wet and dry environment in the past 1 month favored the germination of the weeds. It is very important to control the soil closure before seedling sowing, and control the occurrence of weeds at the first peak of weeding. After paddy sowing and watering, when the water layer is naturally dry and the fields are moist and there is no stagnant water, 42% of the rice per mu is sprayed with 150-180 ml of butyl bupropion EC and 30-60 kg of water is sprayed. The broad-leaved weeds or sedges are abundant. Each block of land plus rice ritual 60% bensulfuron-water dispersible granules 3 to 5 grams, the soil with high amounts of drought. Note that the rice must be used before germination. When applying pesticides, the surface must be smooth and the spray should be uniform. Do not spray or re-spray. The amount of water should be sufficient. After 3 to 5 days after application, the field surface is kept moist, and the rainwater is drained in time. When drought occurs, horse water can be used to fill the earth. The surface cannot contain water.
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