稻田养蟹,稻蟹共生,优势互补,避免了池塘养蟹水质管理困难,隐蔽物不足,夏季水温高等不利因素的影响,加速了河蟹的生长,提高了商品蟹质量。同时因河蟹摄食田间害虫和水草,可减轻稻田虫害、草害,减少或停用杀虫、除草剂。此外,河蟹的活动加速了泥土中有机物分解和无机盐的释放,可少追或不追施化肥,稻米的质量也大大提高。实践证明,稻田养蟹具有省工、节本、经济效益高、生态效益 Rice crabs and rice crabs coexist with each other, complement each other’s advantages, avoid the influence of poor water quality management of pond crabs, lack of concealment and unfavorable factors such as high water temperature in summer, accelerate the growth of crabs and improve the quality of commercial crabs. At the same time due to feeding crabs and aquatic plants crabs, rice can reduce pests, grass damage, reduce or disable pesticides, herbicides. In addition, the activity of crabs accelerated the decomposition of organic matter in the soil and the release of inorganic salts, with less or no fertilizer, and the quality of rice was also greatly improved. Practice has proved that rice crabs have the provincial workers, section, high economic efficiency, ecological benefits