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绿萍是水生植物,广泛分布在热带、亚热带和温带,我国分布在长江流域各省,呈野生状态,七十年代初人工北移到东北,成为重要的绿肥和饲料。到七十年代中期,中科院从德国引进了细绿萍,这种细绿萍不仅比国内绿萍产量高,而且比较耐低温,更适宜北方养殖,进一步促进了我国绿萍生产的发展。近年来,黑龙江省畜牧局将绿萍养殖作为重点生产项目在全省推广,建立起省、县、乡三级越冬、春繁网络,组织起一支由教授、专家组成的技术服务队伍,解决了细绿萍冬季保种、春季扩繁和夏季放养的各项技术问题,养萍范围不断扩大。现每年放养面积超过10万亩,收获鲜萍14万吨,缓解了青饲料不足的紧张状况,并节约了大量饲料粮。
Lupin is an aquatic plant widely distributed in tropical, subtropical and temperate regions. Our country is located in the provinces of the Yangtze River basin. It is in a wild state. In the early seventies, the artificial north moved to the northeast and became an important green manure and feed. By the mid-seventies, the Chinese Academy of Sciences introduced Fine Green Ping from Germany. This fine Green Ping not only produced more than the domestic Pingdingshan, but also had a low temperature tolerance and was more suitable for northern breeding. This further promoted the development of China’s Green Snapdragon production. In recent years, Heilongjiang Animal Husbandry Bureau will Lvping culture as a key production project in the province to promote the establishment of provincial, county and township winter, spring network, organized by a professor, expert technical service team to solve Thin green Ping winter preservation, expansion of the spring and summer stocking the technical problems, Yang Ping range continues to expand. Annual stocking area of more than 100000 acres, fresh harvest 140000 tons, alleviate the shortage of green feed tension, and save a lot of feed grain.