How to fertilize pollution-free rice production

The production of pollution-free rice and rice is suitable for the application of high-quality organic fertilizer. The organic fertilizer is mainly used for returning straw from the first year, and the fertilized manure is 1500-2000 kg/mu in the first half of the planting period. The chemical fertilizer should be specially prepared according to the local soil characteristics. Fertilizer, compound fertilizer or organic-inorganic compound fertilizer, BB fertilizer with pure nutrient content of 50%, 25-30 kg/mu; compound fertilizer with pure nutrient content of 25%, or organic-inorganic compound fertilizer, 40 per acre. -50 kg; the application of elemental chemical nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, generally acidic neutral soil, 15 kg of urea per acre or 35 kg of ammonium bicarbonate as base fertilizer, topdressing urea 5 kg / mu, superphosphate or strontium magnesium phosphate 25-30 kg/mu as base fertilizer, potassium chloride 4-5 kg/mu as base fertilizer, and zinc sulfate 1.5-2 kg.

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