绿萍具有较强的光合固氮作用,在中国早已广泛养殖,用作稻田绿肥和畜禽饲料。对于绿萍属的各个种,尚未有集中在一起同时比较鉴定其农业利用性质。本研究是将分布在世界五大洲的8个绿萍种的若干样品,经初步比较后选取其中12个品系,进行全年繁殖,并对固氮活性、肥分含量,抗逆性能等农业利用性质进行考察,为农业生产选取新的绿萍种源。 Lupin has a strong role of photosynthetic nitrogen fixation, has long been widely cultured in China for green manure and livestock and poultry feed. For all species of Lupinus, not yet concentrated together to identify the nature of its agricultural use. In this study, a number of samples of 8 species of Lupinu from five continents of the world were selected. After preliminary comparison, 12 of them were selected and propagated throughout the year. The characteristics of agricultural use such as nitrogen fixation activity, fertilizer content and stress resistance Inspect and select a new source for Lvjing for agricultural production.