为了缩短河蟹的养殖周期,争取当年的蟹苗当年上市,利用早繁苗（每年4月1日前出池的蟹苗）,经反季节塑料大棚强化培育幼蟹,充分发挥了塑料大棚的生态优势,增强蟹苗的适应能力及抵抗能力,大大提高了河蟹的上市规格。笔者现结合我地生产实践,介绍该法操作如下。 In order to shorten the breeding cycle of crabs, and strive for the year then the crabs market, the use of early and friable (early April 1 before the pool of crabs), through the anti-season plastic greenhouse intensive breeding crab, give full play to the ecological advantages of plastic greenhouses , Enhance the adaptability of crab seedlings and resistance, greatly improving the listing of crabs specifications. The author is combining my production practice, introduce the law operation is as follows.