“草、猪、鸭、鱼”生态农业的研究

A STUDY ON "GRASS,PIG,DUCK AND FISH″AGRICULTURAL ECOLOGY

通过在恒湖水产场以“寓研究于生产”的方式，开展“草猪鱼”、“草猪鸭鱼”、“草鸭鱼”和“草鱼”（对照）４种模式的对比试验，结果得出：（１）有猪鸭的３种模式均优于对照；（２）“草鸭鱼”的３个效益依次优于“草猪鸭鱼”、“草猪鱼”；（３）在生产上选择模式应根据条件的具备程度，依次采用“草猪鱼”、“草猪鸭鱼”、“草鸭鱼”为宜；（４）猪鸭鱼比例、粪肥使用原则及以防为主的猪鸭鱼疾病防治等是有猪鸭的各种模式的关键技术。

According to the priciple of“putting research in production ”a few contrast experimentswere done on the patterns of 'grass,pig and fish','grass,pig,duck and fish','grass,duckand fish'and 'grass and fish'. in Henhu Aquatic Farm. The results showed:(1)The pattern of“grass , pig and fish”,'grass,pig,duck and fish',and'grass,duck and fish' were better than that of ' grass and fish'.(2)According to the economic,social and ecological efficiency,thepattern of'grass,pig and fish'was better than that of'grass,pig,duck and fish'。 And thepattern of 'grass,pig,duck and fish' was better than that of'grass,duck and fish'.(3)Ac-cording to the production conditions, the pattern of'grass,pig and fish' was better than thatof 'grass,pig,duck and fish'; while'grass,pig,duck and fish' was better than ' grass,duck and fish'.(4)The propertions of pig,duck and fish,the principle of fertilizer applicationand the protection against diseases in pig,duck and fish were the key techniqus.