Determination of Organic Fertilizer and Nitrogen, Phosphorus and Potassium Fertilizers in Apple Orchard

Generally, for every 100 kilograms of fruit produced, 1.7 kg of nitrogen, 1.5 kg of phosphorus, and 1 kg of potassium are required. The appropriate ratio of nitrogen, phosphorus and potassium is 1:1:1 or 1:2:1, the fruit tree is 1:1:1, the result tree is 1:0.5:1.2, and the aging tree is 2:1:1.

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