“7841”[3-(2-吡啶基)丙醇]是南开大学元素有机化学研究所合成的新植物生长调节素,有促进大豆、花生等作物早花早荚,提高结荚率,增加产量和提前成熟的作用.但对豆科绿肥的效果,尚未见报道.苕子成荚率不足10%,产种量低而不稳.本试验的目的,是研究“7841”不同浓度和不同喷施时期对苕子结荚率和产种量的影响. 7841 “[3- (2-pyridyl) propanol] is a new plant growth regulator synthesized by the Institute of Elemental Organic Chemistry at Nankai University. It promotes the early flowering of early flowering crops such as soybean and peanut, increases the rate of podding and increases the yield And the role of early maturity.But the effect of legume green manure has not been reported.The prickly heat pod rate less than 10%, low yield and instability.The purpose of this experiment is to study the ”7841" different concentrations and different spray Effect of Shi period on the pod yield and seed yield of.