Pear orchard soils lack of calcium, iron, zinc, boron and other trace elements are common, especially in southern pear orchards that lack phosphorus, potassium, calcium, and magnesium, and soil acidification is serious. Therefore, high-yield pear orchards must do the following fertilization principles.

Fertilization principles: 1. Increase the application of organic fertilizer, plant green manure in orchards, cover straw, and fertilize the soil. Orchards with severe soil acidification should be improved by applying lime and organic fertilizer. 2. According to the soil fertility conditions of the pear orchard and the growth status of the pear trees, appropriately reduce the amount of nitrogen and phosphorus fertilizers, increase the application of potassium fertilizer, and supplement calcium, magnesium, iron, zinc, boron and other trace elements by spraying on the leaves. 3. Combining green cultivation techniques for increasing yields, yield levels, and soil fertility conditions, determine the fertilizer application period, amount and nutrient distribution ratio. 4. Optimize the method of fertilization, change the spreading application to strip application or hole application, rationally coordinate irrigation and fertilization, and adjust fertilizer with water. 5. Fertilization must be used together with photosynthetic nutrient film fertilizer, which can help plants absorb a large amount of light fertilizer, light energy, light, compatible with conventional fertilizers, and nutrients to provide plants to the limit of growth and development. Benefit from one application throughout the year.

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