绿萍(红萍、满江红)是一种漂浮的水生蕨类植物,不仅生长繁殖快,营养价值高,是一种良好的饲料,而且又是稻田的好绿肥。近年来,我省绿萍北移获得成功,去年全省养绿萍500多亩,产萍600多万斤。我省多到江苏省苏州地区引种。4月中旬到5月底引来萍种后,需进行保温春繁,6月上中旬引种则可直接进入露天养殖。引种过早,不仅种源 Lvping (Hongping, Azolla) is a floating aquatic fern, not only fast growth and reproduction, high nutritional value, is a good feed, but also a good green manure paddy. In recent years, the success of Luping in our province has been successful. Last year, the province raised 500 mu of green leprosy and produced more than 600 kilograms of shrimp. I province more than the introduction of Suzhou, Jiangsu Province. From mid-April to the end of May attracted Ping Ping species, the need to carry insulation in spring, in mid-June introduction can be directly into the open-air farming. Introduced too early, not only provenance