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陕西省南郑县郭滩乡菜园村农民曹长明,1989年起承包凤凰山水库汤漕片鱼池二口,共28亩水面,进行鱼种、成鱼配套生产,效益随着技术的不断提高,三年跨了三大步。1991年,鱼种、成鱼生产双获双丰。四亩鱼种池,平均亩产鱼种437.5公斤,24亩成鱼池,平均亩产商品鱼761公斤。他获得双丰产的主要技术措施是: 一、学习技术,为丰产奠定基础他为
Cao Changming, a farmer in Caiyuan Village, Guo Tan Township, Nanzheng County, Shaanxi Province, started to contract two ponds of soup and cauliflower in Fenghuangshan Reservoir in 1989 with a total of 28 mu of water surface for supporting the production of fish species and adult fish. As the technology continues to improve, Year across three major steps. In 1991, fish species, adult fish double Shuangfeng production. Four acres of fish ponds, the average yield of 437.5 kilograms of mussels, 24 acres of fish ponds, the average yield of 761 kilograms of fish products. His main technical measures to gain double bumper crop are: First, learn the technology to lay the foundation for high yield He