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紫云英又名红花草,是一种高产越冬豆科绿肥,根系发达,茎叶细嫩,养分丰富,既是肥料,也是养猪饲料。解放前,仅在我国长江中、下游一带肥力较高的水稻土上种植。解放后,在配合根瘤菌肥和增施磷肥的推动下,迅速在南方各省普遍推开,是华南地区早、中稻的主要有机肥料。我省汉中地区引入已有十余年,但鲜草产量不高,近三年来由于接种根瘤
Astragalus, also known as safflower grass, is a high yield overwintering legume green manure, developed root system, delicate stems and leaves, nutrient-rich, both fertilizer, but also pig feed. Before the liberation, only paddy soil with high fertility in the middle and lower reaches of the Yangtze River in our country was planted. After liberation, with the promotion of rhizobium fertilizers and phosphate fertilizer, it was promptly promoted in various provinces in the south and was the main organic fertilizer for early and medium rice in South China. Introduction of Hanzhong in our province has been more than ten years, but fresh grass yield is not high, the last three years due to inoculation of nodules