One should pay attention to the application of organic fertilizer. Organic manure contains various nutrients, which can improve the characteristics of soil aeration and absorption and water retention, promote steady growth of rice plants, and achieve high yield and quality. Organic fertilizer is mainly used as base fertilizer, 30 to 40 metric tons of land-fertilizer for Mushi, or 30 to 40 kg of cake fertilizer, and 40-50 for human and livestock manure before ploughing.
Second, pay attention to control nitrogen fertilizer. Excessive application of nitrogen fertilizer to rice will not only increase the number of ineffective tillers, turn green, lodging, and pests and diseases will intensify, leading to more empty grains, lower seed setting rate, and affecting rice yield. Nitrogen fertilizers are mainly used as topdressing fertilizers. After the first rice transplant, 6-7 kg of urea was applied to the mus, and the second time, 13 to 15 days after the planting, the combination of Putian and Mushi urea were 4-5 kg ​​to facilitate the development of the tree. Strong and strong. The mid-term should pay attention to drainage and fertilizer control. Only the second and third types of seedlings with poor growth should be supplemented with some balanced fertilizers as appropriate. In the later period, they should see 3-4 kg of grain fertilizer.
Third, we must pay attention to the application of phosphorus and potassium fertilizers. Phosphorus and potassium fertilizers can increase the vitality of plants, promote the synthesis and operation of nutrients, strengthen photosynthesis, extend the functional period of the leaves, make the grain full and full, and increase the yield. Phosphorus fertilizer is suitable for basal fertilizer, and potassium fertilizer is better. In a sufficient amount of organic fertilizer, 20-40 kg of phosphate fertilizer is applied per mu, and 3.5-5 kg ​​of potassium chloride may be topdressed per acre before delivery. Late spraying of phosphorus and potash fertilizer can promote grain filling. In the late stage of heading and flowering, and spraying at the grain filling stage, 50-100 grams of phosphorus and potassium fertilizer are used for each acre, and 50-60 kg of water is sprayed in the evening.
Fourth, we must pay attention to increase fertilizer. Zinc fertilizer and silicon fertilizer can not only improve the supply of oxygen in rice roots, enhance the resistance and lodging resistance of rice plants, increase the disease resistance of plants, promote the development of root system in the later period, prolong the functional period of leaves, and prevent premature aging; it can also accelerate flower development. , Increase the number of pollen, promote flower bud germination, is conducive to raising the rate of rice spikes; but also can promote large panicles, increase seed-filling rate and grain filling degree, increase rice yield.
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