浙江省温岭县沙山乡对虾养殖专业户李宗林,是全县有名的养虾能手,他承包的一口面积50亩的虾塘,原是由一个报废的盐场改建而成的,生产条件差,过去单养中国对虾,连年亏本。1990年,李宗林承包后,因塘制宜,实行对虾二季轮养,虾、蛏、蟹(青蟹)混养,总产达7703公斤,平均亩产对虾70.14公斤,蛏、蟹等亩产91.89公斤,总产值达 Li Zonglin, a shrimp farming specialist in Shashan Township, Wenling County, Zhejiang Province, is a well-known shrimp expert in the county. He contracted a shrimp pond of 50 mu in area. It was originally constructed from a renovated saltworks with poor production conditions. In the past Monoculture China shrimp, losing money year after year. In 1990, after Li Zonglin contracted, due to pond system, shrimp, shrimp, crab and crab (blue crab) were kept in polyculture with a total output of 7703 kg and an average yield of 70.14 kg per mu 91.89 kg, the total output value up