垫江白柚闻名全国，但产量低是其缺点。为解决此问题，笔者从环扎、环割、环剥保果入手，以期提高垫江白柚着果率．从而提高产量。 试验于１９９９年在长龙高明２社号棚坡进行，试材为６年生初花垫江白柚树，土壤为沙壤土。试验设３个处理，即：环扎一圈、环割２圈、环状倒贴皮 Dianjiang white grapefruit is famous throughout the country, but its low yield is its drawback. To solve this problem, the author from the cerclage, ring cutting, girdling Paul fruit, with a view to increasing the rate of Dianjiang white grapefruit. Thus increasing production. The experiment was carried out in 1999 at Longsheng Gaoming 2, Salsa Slope, and the test material was a 6-year-old Dianjiang white pomelo tree with soil as sandy loam. Experiment set up three treatments, namely: ring around the ring, ring cutting 2 laps, ring inverted veneer