为了充分利用水体,提高池塘经济效益,在我镇推广“一塘双季养蟹育虾轮养技术”,获净利3500～4000元/0.067hm~2以上,比单一养蟹或育虾单位效益增加30％以上,现将其技术要点介绍如下: 1 池塘条件 池塘应靠近水源,水质无污染,面积0.66hm~2～2hm~2,池底干坦,在池塘中间或四周开挖一条宽5～8m、深1.2～1.5m的养殖沟,既可进 In order to make full use of water, improve the economic efficiency of the pond, in my town to promote “a pond bi-season crab breeding rearing technology”, net profit 3500 ~ 4000 yuan /0.067hm ~ 2 more than single crab or broodstock unit benefits An increase of more than 30%, now the technical points are as follows: 1 pond conditions should be close to the water source ponds, water pollution, an area of ​​0.66hm ~ 2 ~ 2hm ~ 2, dry bottom of the tank, in the middle or around the pond excavation of a wide 5 ~ 8m, deep 1.2 ~ 1.5m farming ditch, both into