柽麻(Crotalaria juncea)又称太阳麻、印度麻、菽麻,为一年生草本,豆科猪屎豆属植物,原产印度。我国台湾省引种最早,1940年福建省同安县从台湾省引进以后,广东、广西、江苏便相继种植。60年代传到湖北省,70年代作为夏季绿肥便大量种植。因其有较高的含N量,且具有固N作用,生长快等特点,普受人们的亲睐。由于柽麻是喜温作物,且属豆科,易受虫害,所以柽麻留种技术严格,地域性强,既要保证它能在充足的阳光下生长,同时又要避开虫害盛期,这样给栽培上带来很大困难。一般来讲从北到南,柽麻易生长,但是自然产量很低,产量极不稳定。为 Crotalaria juncea, also known as sun hemp, India, hemp, hemp, annual herb, Legume genus Crotalaria, native India. Taiwan Province of China introduced the earliest, 1940 Fujian Tongan County introduced from Taiwan Province, Guangdong, Guangxi, Jiangsu, one after another will be planted. 60’s spread to Hubei Province, the 1970s as a large number of summer green manures will be planted. Because of its higher content of N, and has the role of solid N, fast growth and other characteristics, general by people’s pro-gaze. As the hemp is a hi-temperature crops, and is leguminous, susceptible to pests, so hemp seed stay strict technology, strong regional, it is necessary to ensure that it can grow in plenty of sunlight, but also to avoid the pest period, This is very difficult to cultivate. In general, from north to south, it is easy to grow, but the natural yield is very low and the yield is extremely unstable. for