苦豆子是一种野生的多年生豆科植物。在內蒙巴盟地区,特别是河套灌区分布很广。农民多年来曾因地制宜广泛地利用这种野生植物作为各种作物,特别是水稻的追肥或基肥,收到显著的增产效果。因此,羣众給以很高的評价,認为是一种最好的綠肥。 Sophora is a wild perennial legume. Bamei Inner Mongolia region, especially the Hetao Irrigation area is widely distributed. For many years, peasants have widely used this wild plant as a variety of crops, especially rice topdressing or basal fertilizer, according to local conditions and have received significant increase in yield. Therefore, the people give a high opinion, that is the best green manure.