一、时果比法：花和果实有一个相互依存的供求关系。中型果品种叶果比为30－40；1，大型果品种为40－50：1。二、枝果比法：即上年剪留的技梢数与果实之比。大型果品种可掌握3：1，弱村4－5：1，小型果品种2－3：1。三、村干截面积法：每平方厘米平截面积可留3～4个果。适宜留 First, the ratio of fruit: flowers and fruits have an interdependent relationship between supply and demand. Medium fruit varieties leaf ratio of 30-40; 1, large fruit varieties for the 40-50: 1. Second, the branch than the law: that the number of skills in the last year cut the number of leaves and the ratio of fruit. Large fruit varieties can grasp 3: 1, weak village 4-5: 1, small fruit varieties 2-3: 1. Third, the village of cross-sectional area method: cross-sectional area per square centimeter can stay 3 to 4 fruit. Suitable to stay