我们在围绕增大河蟹的规格和提高品质上进行生态养殖试验。生态养蟹试验历时三年,有两户养殖户参加,他们分别是羊尖镇严家桥村的陆志明和顾维兴。 一、养殖塘的选择 所选池塘由稻田开挖而成,有效水面5～10亩/口,他深1.8～2.0米,水深1.2～1.6米,淤泥0.1～0.2米,池堤坡度1:(3～4),池底略有倾斜,以利池水流动。水源采用内河水源,水质清新无污染,符合国家渔业用水标准。每口池塘有独 We are around the increase in crab specifications and improve the quality of ecological farming experiments. Ecological crab experiment lasted for three years, there are two farmers to participate, they are Yangjian Zhen Yan Jiaqiao Lu Zhiming and Gu Weixing. First, the choice of breeding ponds Selected by the excavation of the pond from the effective surface 5 ~ 10 acres / mouth, he was 1.8 to 2.0 meters deep, the depth of 1.2 to 1.6 meters, 0.1 to 0.2 meters of mud, the bank slope 1 :( 3 ~ 4), the bottom of the pool slightly tilted to facilitate the flow of water. Inland water sources, water quality fresh and pollution-free, in line with national fisheries water standards. Each pond has a unique