垫江白柚在我县已发展５００万余株，但适龄无花树甚多。为此，本试验探讨柚类促花剂（中国农业科学院柑桔研究所产）对垫江白柚开花着果的影响。试验于１９９８年秋在长龙乡高明园艺场第七分场水池坡进行。试材为１９９２年栽植的垫江白柚，土壤为石骨子梯土，土厚６０－８０ Dianjiang white grapefruit in my county has developed more than 500 strains, but age no flowering tree much. To this end, the test to explore pomelo flower agent (Citrus Institute of Chinese Academy of Agricultural Sciences) on the flowering of Dianjiang white grape fruit. The experiment was conducted in the autumn of 1998 at the water pool slope of the seventh sub-park of Longming Township Gaoming Horticultural Field. The test material was planted in 1992, Dianjiang white grapefruit, soil as a stone lump soil, soil thickness 60-80