根据１９９３～１９９５年试验结果，赤霉素在蚕豆初花期喷施，平均单株荚数和粒数比喷清水（对照）分别增加１．６荚和３．３粒，增产１９．８％；研制出的三元保荚剂Ａ２Ｂ３Ｎ２在蚕豆三荚期喷施，平均单株荚数和粒数比喷清水（对照）分别增加２．２荚和３．８粒，增产３１．９％ According to the results from 1993 to 1995, gibberellin was sprayed at the first flowering stage of Vicia faba. The average number of pods per plant and grain number increased by 1.6 pods and 3.3 grains, respectively, 19.8% more than that of sprayed water (control). Developed ternary pod A2B3N2 in the bean three-pod spraying, the average number of pods per plant and the number of particles than the spray water (control) increased by 2.2 pods and 3.8 grains, an increase of 31.9%