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紫云英是江南水稻地区的优良冬绿肥。近十年来,通过接种根瘤苗,从它的江南老家跨长江、过淮河,经受了冬季低温-15℃的考验,在陇海线东段各县交了新家,为淮北平原改制后提供了适合于稻茬的绿肥新品种。目前,苏北徐州、淮阴两地区旱改水地带紫云英栽种面积迅速发展,已达110余万亩,亩产鲜草一般3,000—5,000斤,超过万
Astragalus is a good winter green manure in southern rice region. In the past ten years, through inoculation of root nodular vaccine, from its Jiangnan home across the Yangtze River and the Huaihe River, it has undergone the test of low temperature -15 ℃ in winter and handed over new homes in all counties in the eastern section of Longhai Line, providing a suitable home for the Huaibei Plain New varieties of green manure in rice stubble. At present, the cultivated area of milk veranda in Xuzhou and Huaiyin areas in northern Jiangsu has grown rapidly, reaching more than 110 million mu. The yield of fresh grass per mu is generally 3,000-5,000 kg,