去年河蟹全面丰收,刺激了农民的养殖热情。据了解不少农户正积极筹建水泥蟹池,想搞高密度养殖。可是,这些养殖户并不知道,新建的水泥池不宜立即养蟹,特别是不宜投放蟹苗。不久前笔者曾新建一圆形水泥地,投放幼蟹数公斤。几天后巡塘时,发现有些小蟹已死。经向有经验的养殖户请教,才知道新建的水泥池 Last year, a comprehensive harvest of crabs stimulated farmer’s breeding enthusiasm. It is understood that many farmers are actively building cement crab pool, want to engage in high-density farming. However, these farmers do not know, the new cement ponds should not immediately crabs, in particular, should not be put on crabs. Not long ago I had a new round of concrete, put a few kilos of crabs. A few days later Xuntang, found that some crabs have died. After the experienced farmers to consult, we know the new cement pool