我县地处沂山北麓,近几年冬、春严重干旱,冬季封冻前播种的黄芪、桔梗,由于冬、春雨雪少,至“谷雨”时仍出不全苗,甚至不出苗。如用大水漫灌,则连拉带淤,出苗不齐,不全;如用喷壶洒水,则需大量劳力。为解决这个问题,我们根据上述两个品种的种子经冻化可促使发芽的原理,在冬季封冻前,将种子用湿细沙或湿土拌匀,装入布袋中,浅埋于沙堆或土坑中,保持湿润,经自然冻化,翌年开春后,经常进行观察, My county is located in the northern foothills of Laoshan Mountain. In recent years, severe droughts occurred in winter and spring. In winter, the yellow stalks and bellflowers sown before freezing were scarce due to winter and spring rain, and they were still incomplete when they reached “Guiyu”. . If flood irrigation is used, it will pull even with silt, and the emergence will be incomplete and incomplete. If watering with a watering can require a lot of labor. In order to solve this problem, we can promote the germination principle according to the seeds of the above two varieties. Before freezing in winter, mix the seeds with wet fine sand or wet soil, put them into a cloth bag, and bury it shallowly in the sand or In the pits, they are kept moist, naturally frozen, and often observed after the spring of the following year.