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What are the factors that affect the coloring of apples?
Factors include soil organic matter content, tree age, tree vigor, chemical fertilizer proportion, soil moisture status, paper bag quality, pre-bagging medication, and climate. Under the same conditions in other conditions, the higher the content of organic matter, the better the soil inlay, the better the surface light, the better the surface light when the organic matter reaches 20%, the smaller the age of the tree, the better the surface light; the stronger the tree vigor, the more light the surface The better, the outer ash is covered with red wax paper bags, and the surface light is relatively good. When using formula fertilization, especially calcium fertilizer, boron fertilizer is sufficient, and nitrogen and potassium are not excessive, the surface light is also good. The soil is always moist, and the surface of the fruit is also good; the spraying is reasonable, the concentration is appropriate, and the surface light is also good; the temperature during young fruit is higher and the surface light is better. In other words, organic matter is small, tree vigor is too busy and too weak, calcium fertilizer and boron deficiency, nitrogen and potassium fertilizer are too much, the soil is dry and damp, medicine damage, low temperature during young fruit period, high temperature and high temperature after bagging affect the table. Light.