Fruit trees are high-yield and high-quality in successive years, and should be protected by sufficient fertilizer. If the fertilization is insufficient, the fruit will become smaller, the yield will decrease, the quality will deteriorate, and the fruit trees will be severe and small. So, how much fertilizer is suitable for fruit trees? Bao Mingsheng of Jinan Forestry Bureau believes that the amount of fertilizer applied to fruit trees should meet the demand for fruit yield.
Bao Mingsheng pointed out that through the research of scientific research departments, for every 100kg of apples produced, 0.46kg of nitrogen, 0.26kg of phosphorus and 0.55kg of potassium are needed. According to the calculation of 5000kg apple orchard per mu, 23kg of nitrogen, 13kg of phosphorus and 27.5kg of potassium are required. At the same time, it is required to have rich soil organic matter and various medium and trace elements. According to the above requirements, if the apple orchard with a yield of 10,000 kg (5000 kg) per mu is fertilized and fermented, the fern and the sheep ring fertilizer (added soil and grass) can cost more than 6000 kg per mu per year. If fermented pure (wet) cow dung, sheep manure, and pig manure are fermented, it needs more than 3,000 kg per mu per year. If fermented pure (wet) manure and chicken manure are fertilized, it needs more than 2000kg per acre per year (the chicken manure in the chicken farm contains more salt, and the annual application is not good for fruit trees). If the bean cake and cottonseed cake are used, it needs 800-1000kg per mu per year. If you apply dandelion brand 12% bio-organic fertilizer, it needs more than 500kg per acre per year. If chemical fertilizer is applied, due to nitrogen fertilizer volatilization, leaching, phosphate fertilizer, potassium fertilizer fixation, etc., 120 kg of urea, 200 kg of diammonium phosphate and 110 kg of potassium sulfate should be applied per acre, and a small amount of medium and trace elements should be added.
Bao Mingsheng particularly emphasized that for orchards with weak soil or weak tree, organic and inorganic fertilizers should be combined. When applying high-quality high-quality organic fertilizer, 20kg of urea and 30kg of potassium sulfate should be added per acre.
Bao Mingsheng pointed out that through the research of scientific research departments, for every 100kg of apples produced, 0.46kg of nitrogen, 0.26kg of phosphorus and 0.55kg of potassium are needed. According to the calculation of 5000kg apple orchard per mu, 23kg of nitrogen, 13kg of phosphorus and 27.5kg of potassium are required. At the same time, it is required to have rich soil organic matter and various medium and trace elements. According to the above requirements, if the apple orchard with a yield of 10,000 kg (5000 kg) per mu is fertilized and fermented, the fern and the sheep ring fertilizer (added soil and grass) can cost more than 6000 kg per mu per year. If fermented pure (wet) cow dung, sheep manure, and pig manure are fermented, it needs more than 3,000 kg per mu per year. If fermented pure (wet) manure and chicken manure are fertilized, it needs more than 2000kg per acre per year (the chicken manure in the chicken farm contains more salt, and the annual application is not good for fruit trees). If the bean cake and cottonseed cake are used, it needs 800-1000kg per mu per year. If you apply dandelion brand 12% bio-organic fertilizer, it needs more than 500kg per acre per year. If chemical fertilizer is applied, due to nitrogen fertilizer volatilization, leaching, phosphate fertilizer, potassium fertilizer fixation, etc., 120 kg of urea, 200 kg of diammonium phosphate and 110 kg of potassium sulfate should be applied per acre, and a small amount of medium and trace elements should be added.
Bao Mingsheng particularly emphasized that for orchards with weak soil or weak tree, organic and inorganic fertilizers should be combined. When applying high-quality high-quality organic fertilizer, 20kg of urea and 30kg of potassium sulfate should be added per acre.
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