When the size of the jackfruit fruit is large, the fruit fertilizer is applied, and the high-quality organic fertilizer, the biological fertilizer and the complete fertilizer of NPK are added, and the phosphorus, potassium, calcium and magnesium fertilizers are added. The result tree of 5 years old or more, or more than 25~30 trees of fruit, the manure and livestock manure, compound biological fertilizer, NPK, potassium sulfate or nitrate sulphate. After thoroughly mixing and mixing all the fertilizers, dig 6~8 radioactive ditch 80~100cm long, 25~30cm wide and 15~20cm deep under the canopy, spread the fertilizer in the radiation ditch, cover the soil Just fine. If the weather is dry after fertilization, it should be drenched with clear water or biogas slurry, and evenly applied to the soil covering the radiation ditch. It is better to completely penetrate the soil into the soil to promote the dissolution and transformation of the fertilizer and accelerate the absorption and utilization of the root system. . At the same time, the surface should be sprayed with magnesium sulfate, potassium dihydrogen phosphate, etc., which can be added to the photosynthetic nutrient film fertilizer to help the growing plants absorb light energy, improve fertilizer efficiency, enhance vitality, nourish the rain, and thrive.
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