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连续五年密植桃园的主干形修剪试验表明：主干形修剪技术用于密植栽培桃树早结果早丰产效果显著。‘春花’成苗定植后第二年产量达1300kg·666．7m-2，第三年为1500kg·666．7m-2，第四年为2250kg·666，7m-2，第五年为1750kg·666．7m-2；‘湖景蜜露’定植后第二年和第三年产量为1021kg·666．7m-2和1019kg·666．7m-2；‘锦绣’定植后第二年产量为120km·666．7m-2，第三年为1204km·666．7m-2，第四年为1876km·666．7m-2；‘沪463’定植后第三年产量为47．5kg·666．7m-2，第四年为2125kg·666．7m-2。主干形修剪夏季摘心可促进早期副梢的萌发，利用副梢坐果，均衡树势。主干形修剪对桃果实的品质有一定的影响，使果实相对变小，单果重减轻，要注意疏花疏果，加强肥水管理。
The main trunk pruning test for five years of intensive planting of Taoyuan showed that trunk pruning was effective in early planting of peach trees in close planting with early bolting. In the second year after planting, the yield of Spring Flowers reached 1300kg · 666.7m-2, 1500kg · 666.7m-2 in the third year, 2250kg · 666,7m-2 in the fourth year and 1750kg in the fifth year · 666.7m-2 and 1019kg · 666.7m-2 in the second and third year after the planting of “Lake View Honeydew”. The output of the second year after ’Jinxiu’ planting was 120km · 666.7m-2 in the third year, 1204km · 666.7m-2 in the third year and 1876km · 666.7m-2 in the fourth year. The third year after the planting of ’Shanghai 463’ was 47.5kg · 666.7m- 2, the fourth year is 2125kg · 666.7m-2. Trunk-shaped pruning summer topping can promote early secondary shoots germination, the use of secondary shoots sit, balanced tree potential. Trunk-shaped pruning of peach fruit quality have a certain impact, so that the fruit is relatively smaller, single fruit weight reduction, we should pay attention to thinning and thinning to enhance fertilizer and water management.