The first is to strengthen water management. Do wet nursery mainly, pay attention to drainage after long rain, eliminate waterlogging.
The second is to prevent and treat disease at seedling stage in time. Seedlings before and after the 2 leaves 1 heart is a critical period for the prevention of rot and dead seedlings. Special attention should be paid to the application of pesticides. 70% of dexkon 25 grams per square meter is sprayed with 1.5 kilograms of water, or 3% of kang ling agent 300 - 500 times liquid 1 kg, spray 10-15 square meters seedling seedlings.
The third is timely fertilizer. It is necessary to strengthen the nutritional supply of seedlings and enhance the resistance of seedlings to various adverse conditions. For yellowing seedlings and weak seedlings, we should choose sunny top dressing several times, first light and thick, eat less meals. For weak seedlings, appropriate amount of diluted faecal water can be applied first, until the seedlings grow normally, and a small amount of urea fertilizer is added at the time of delivery. Each acre can be applied 15-20 kilograms of plant ash, which can increase potash fertilizer, but also increase soil temperature, promote seedlings robust growth, enhance disease resistance. Avoid using chemical fertilizers in rainy weather to prevent fertilizers. For flooded fields where dead seedlings have already occurred, drainage should be carried out in Putian in time and grass ash should be applied, or potassium dihydrogen phosphate should be used for top dressing outside the seedlings. Application of ferrous sulfate, zinc sulfate and other fertilizers.
The fourth is to strengthen inspections and make timely replanting. To strengthen the inspection of rice seedbeds, if there are too many dead seedlings, they should be ready for replanting. When replanting, all soaking in warm water, germination sowing, plastic film cover.
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