研究了新型保果剂“增果灵”对柑桔的增产增质效果与部分生理效应。结果表明喷施增果灵具有以下功效：（１）能减少落果，提高产量，比对照增产１８．９６％ 以上，产投比高达２２．８６∶１；（２）能促进果实肥大，提高单果重，改善果实的外观和内在品质；（３）能使叶片增厚增重，提高叶绿素含量；（４）能抑制疮痂病菌对果实的侵染，降低病果率。社会效益和经济效益显著。 The effects of “XinGuoLing”, a new type of preservative, on the yield and quality of citrus fruits and some physiological effects were studied. The results showed that sprayed trehalose has the following effects: (1) It can reduce fruit drop and increase yield, yield more than 18.96% compared with the control, the production to investment ratio is as high as 22.86:1; (2) It can promote fruit hypertrophy and improve fruit Heavy, improve the appearance and intrinsic quality of the fruit; (3) thicken the leaves to gain weight and improve the chlorophyll content; (4) can inhibit the fruit of the scab pathogen infection, reduce disease rate. Significant social and economic benefits.