1　柑　我镇 2 0世纪 90年代初新种 2 0余 hm2 柑 ,着果率偏低。笔者于 1994～ 1995年 ,在 15株 5年生柑上于 4月 5日喷多效唑 10 0 0倍液 ,春梢明显减少 ,长度均在 5～ 10 cm。叶片提早转绿 4天 ,着果率显著提高。为防止夏梢萌芽 ,7月再喷多效唑30 0倍液一次 ,第二次生 1 citrus my town in the 20th century, the early 1990s 90 new varieties of more than 20 hm2 Citrus, low fruit rate. In 1994-1995, the author sprayed 10 times of paclobutrazol on 15 April on 5-year-old Poncirus pumila on April 5, the spring shoots were obviously reduced, and the lengths were all 5 ~ 10 cm. The leaves turn green early 4 days, the fruit rate increased significantly. In order to prevent summer shoot sprout, in July and then spraying PPO 30 times a second, second life