利用塑料大棚培育早繁虾苗,5月至8月中旬养殖第一茬罗氏沼虾,8月中旬至10月中旬养殖第二茬罗氏沼虾;或6月至9月养殖罗氏沼虾,10月至翌年5月养殖青虾。这样,一年养殖两茬虾,可以充分利用养殖水面和其中的饵料生物资源,大幅度提高养虾经济效益。一、选好塘口要求池塘面积8亩～10 Cultivation of early shrimp seedlings in plastic greenhouses, the first crop of Macrobrachium rosenbergii from May to mid-August, the second crop of Macrobrachium rosenbergii from mid-August to mid-October, or Macrobrachium rosenbergii from June to September May to the following year in May breeding freshwater shrimp. In this way, breeding two stubble shrimp a year can make full use of aquaculture water surface and the biological resources of the bait, greatly improve the economic benefits of shrimp farming. First, choose a good choice of pond area of ​​8 acres of ponds ~ 10