近年来,我县紫云英产籽量逐年下降,单产很低,为了解决这个问题,1981年我们对紫云英留种田进行了喷施磷酸二氢钾和硼砂的对比试验,取得了显著的增产效果。试验经过试验分四种处理:(1)0.2％磷酸二氢钾与0.2％的硼砂混合液作叶面喷施,亩用量各2两;(2)0.2％的磷酸二氢钾液作叶面用喷施,亩用量2两;(3)0.2％的硼砂液作叶面喷施,亩用量2两;(4)二种都不施作对照施用。时间分 In recent years, the annual output of Astragalus Populus seedlings in our county decreased year by year, yield is very low. In order to solve this problem, in 1981, we compared the application of potassium dihydrogen phosphate and borax sprayed on the cultivation of Astragalus sinicus and achieved remarkable Increase production efficiency. Tests were divided into four treatments: (1) 0.2% potassium dihydrogen phosphate and 0.2% borax mixed solution for foliar application, the amount of each two acres; (2) 0.2% potassium dihydrogen phosphate as foliar With spraying, mu two two; (3) 0.2% of the borax spray for foliar application, the amount of acres of two; (4) the two are not applied as a control. Time points