Four considerations for rice fertilization
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Second, we must pay attention to the application of organic fertilizer. Organic fertilizer contains various nutrients, which can improve soil aeration, water absorption and water retention characteristics, promote the stable growth of rice plants, and obtain high yield and quality. The organic fertilizer is mainly used as the base fertilizer, 30-40 ton of succulent soil and mixed fertilizer, or 30-40 kg of cake fertilizer. It can also apply 40-50 liters of human and manure before the ploughing.
Third, we must pay attention to the application of phosphorus and potassium fertilizer. Phosphorus and potassium fertilizer can enhance plant vigor, promote nutrient synthesis and operation, enhance photosynthesis, extend the functional period of leaves, and make the grain full and full, and increase yield. The base fertilizer is suitable for phosphate fertilizer, and the potassium fertilizer is better. In the field with sufficient organic fertilizer, 20-40 kg of phosphate fertilizer per acre is applied, and 3.5-5 kg ​​of potassium chloride can be applied per mu before tillering. Spraying phosphorus and potassium fertilizers in the late stage of rice can promote the filling and fruiting. Spraying once in the late stage of heading and flowering, and using 50-100 grams of phosphorus and potassium fertilizer per acre, and spraying 50-60 kilograms of water in the evening.
Fourth, we must pay attention to the application of micro-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, improve the disease resistance of plants, promote the development of roots in the later stage, prolong the functional period of leaves, prevent premature aging, and accelerate the development of flowers. Increase the amount of pollen, promote the germination of flower granules, and help to increase the rate of rice emergence; and also promote the large number of spikes, increase the seed setting rate and the grain filling degree, and increase the rice yield.