[Objective] To study the polyculture mode of turtle, fish and shrimp in paddy field, overcome the problem of ecological environment deterioration, frequent diseases and declined flavor caused by high-density monoculture. [ Method] Three patches of paddy fields, which had good water sources, irrigation and drainage facilities, were selected as the experimental field to carry out the polycullure experiment of turtle , fish and shrimp, the economic and ecological benefits were analyzed. [ Result ] After ten months of culture, a total of 6 904. 3 kg of turtles , 1 428 kg of shrimps, 3 744 kg of fish and 24 635 kg of rice were harvested, the feed conversion rates of turtles and shrimps were 1. 8 and 1. 6. The total output value was 813 000 RMB, net profit was 432 000 RMB, the average profit was 127 065 RMB /hm2, and the input-output ratio was 1:2. 13. [Conclusion] The polyculture model has remarkable economic and ecological value, and is worthy to be popularized in the whole province.%[目的]研究稻田鳖、鱼、虾混养技术模式,克服高密度单养造成生态环境恶化、疾病频发、风味下降等问题.[方法]选择3块水源、排灌设施等条件良好的稻田作为试验田,进行鳖、鱼、虾混养试验,分析其经济效益与生态效益.[结果]经过10个月饲养,共收获商品鳖6904.3 kg、商品虾1 428 kg、商品鱼3 744 kg、收割稻谷24 625 kg,其中日本鳖、青虾饵料系数分别为1.8、1.6,实现总产值81.3万元,纯利润43.2万元,平均利润127 065元／hm2,投入产出比1:2.13.[结论]该混养模式经济、生态效益显著,值得在安徽省大面积推广应用.
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