我们于2001年承担并实施了河东区科技局下达的“罗氏沼虾与河蟹、鲢鳙鱼池塘混养技术”项目,在取得良好效果的基础上,2002年进行了大面积推广。现将主要技术要点总结如下。一、材料与方法1.池塘条件池塘为当年开挖的薄岭地、涝洼沼泽地或养过2年鱼的池塘,面积3～8亩,一般5亩左 In 2001, we undertook and implemented the “Macrobrachium rosenbergii and crab, silver carp and bighead carp polyculture techniques” issued by the Science and Technology Bureau of Hedong District. On the basis of good results, we conducted a large-scale promotion in 2002. The main technical points are summarized below. I. Materials and Methods 1. Pond Conditions Ponds were thin-shelled, waterlogged wetlands or ponds raised for 2 years of fish excavated during the current year, with an area of ​​3 to 8 mu and a general area of ​​5 mu