为筛选适合我省的果园绿肥品种,我们从1978年开始,先后试种了聚合草、草木栖,沙打旺、毛叶苕子、红豆草、乌豇豆、红三叶、白三叶、柽麻、苦参、黑麦草、鸭茅等10余个品种。1980年,我们在引进美国优良牧草小冠花的同时,看到在我所大树下、地埂上、道路边、崖坡上也生长着一种与小冠花枝叶相似的豆科野生牧草,经北京植物园胡叙良同志鉴定为扁茎黄芪。据了解,扁茎黄芪在我省晋中一些地方,以及河 In order to screen the varieties of green manure suitable for our province, we started from 1978 and experimented on different species of grass, herbaceous plant, sand-weiwang, hairy millet, red bean, black cowpea, red clover, white clover, Sophora, rye grass, Dactylis more than 10 varieties. In 1980, while introducing the fine American grass floret, we saw that under our big tree, on the ground, on the roadside, on the slope of the cliff, we also grow a kind of legume forage , Identified by the Beijing Botanical Garden Comrade Hu Syria for the flat stem astragalus. It is understood that the flat stem astragalus Jinzhong in our province some places, as well as the river