According to reports, due to the recent low-temperature and low-temperature weather, rice seedlings in parts of northeastern China have rare rice cotton rot. The prevention and control measures for rice rot in rice seedlings are described below for reference.
Strengthen moisture management Wet seedlings Before sowing, until the buds are emerged, the field surface of the paddy field is kept moist, and it is not possible to pass the water to the surface of the car in the morning. After the first leaf is opened, it can be properly filled with shallow water. During the period of 2 to 3 leaves, it is mainly based on heat preservation and cold protection. The cold wave is about to be flooded with “blocking the waist water†to protect the seedlings, and the cold air will be turned into normal management later.
Spray protection Protect seedbeds with Dixon prior to sowing. Once the central diseased plant is found, it should be controlled in time. 25% metalaxyl WP 800-1000 times per acre can evenly spray. When the cotton rot occurs seriously, Putian should change the water two or three times before spraying. In addition, 15-25 kg of plant ash per acre also have certain control effects.
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