苏丹草。是中科院由国外引入的优质木本科牧草，称为“鱼用饲草之王”，留种田生育期127天，饲草田保温栽培可延至280天，它生长快分菜率高，再生能力强。可割4－6次，亩产单1万公斤，县草质鲜嫩，鱼畜禽喜食，适宜养鱼。一亩鱼塘配0．3亩苏丹草，每12公斤草可产草鱼0．5公斤、 Sudan grass. Is introduced by the Chinese Academy of Sciences of quality woody forage, known as the “King of fish forage”, leaving the farming period of 127 days, forage grass incubation can be extended to 280 days, it is fast-growing fast food, strong regeneration ability . Can be cut 4-6 times per mu single 10,000 kg, county grass fresh, fish, livestock and poultry, suitable for fish. An acre of fish ponds with 0.3 acres of Sudan grass, grass can produce 12 kilograms of grass 0.5 kg,