种草养鱼成本低、周期短、见效快、效果好,尤其在当前饲料缺乏、价格普遍上涨的情况下,利用江河、湖泊、山塘、水库的堤岸、洲滩和其他荒山隙地发展种草配套养鱼,对加快发展渔业生产具有重大的现实意义。我国南方人口稠密、耕地少,但能种草的地域极为广阔,面积约20亿亩(包括草山草坡),且自然条件优越,淡水资源丰富,光热充足,雨量充沛, The cost of planting grass and fish is low, the cycle is short, the effect is quick, and the effect is good. Especially in the current lack of feed and generally rising prices, the utilization of rivers, lakes, ponds, embankments of reservoirs, Supporting fish farming, to accelerate the development of fishery production of great practical significance. The south of China is densely populated and has a small amount of arable land. However, the area capable of growing grass is extremely vast with an area of ​​about 2 billion mu (including Caoshan Hillside) and superior natural conditions with abundant freshwater resources, sufficient light and heat, abundant rainfall,