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For the late-maturing varieties that are in the late stage of fruit enlargement, 0.2-0.3% urea plus 0.5% superphosphate, or 0.2-0.3% urea plus 0.3% potassium dihydrogen phosphate can be applied from root to root, spraying sooner or later, every 5 to 7 Once a day, a total of 2 or 3 times. Soil fertilization should be applied to the water, the strain can produce 50 kilograms of pear trees can be watered strains 0.2 kilograms of urea plus 0.2 kilograms of potassium sulfate plus 0.5 kilograms of superphosphate, or watered into the 0.5 to 1 kilogram of ternary compound fertilizer.