谷田主养草鱼种,是在同一块水田中,既插秧,又养鱼,谷田共生互利。谷田养鱼的目的是促进稻谷增产,又获渔利,生产的草鱼种,满足池塘水库放养的需要,提高鱼产量。谷田主养草鱼种,草鱼在水田中不断地除草。可以说,人工除草或用除草剂除草,只保稻一时,而草鱼除草则能保护水稻一生。同时,稻谷的纹枯病明显减少。稻禾的害虫有一段时间在水中度过,此时被草鱼吃掉,减少虫害。草鱼除草灭虫后,排泄的粪便能被稻谷利用,起到保肥、造肥的效果。草鱼日夜在水田里游动,不仅增加田里的氧气,还能起到疏松土壤的作用。主养草鱼种的谷田,每667平方米放养800尾草鱼火片,就能生产13厘米左右的草鱼种500尾左 Gutian main grass carp species, is in the same paddy field, both transplanting, fish farming, symbiotic symbiotic mutual benefit. The purpose of fish farming in Gutian is to promote the increase of paddy yield, harvesting of grass carp species, and meeting the needs of stocking in ponds and reservoirs to increase fish production. Gu Tian main grass carp species, grass carp in the paddy fields continue to weeding. It can be said that artificial weeding or weeding with herbicides only protects rice for a while, while grass carp weeding can protect rice’s life. At the same time, rice sheath blight significantly reduced. Pests of rice straw spend some time in the water, this time being eaten by grass carp to reduce pests. Grass carp weeding pest control, the excretion of manure can be used by rice, played Paul fertilizer, fertilizer effect. Day and night grassworms swim in paddy fields, not only increase the oxygen field, but also play a role in loosening the soil. The main grass fish species of Valley, every 667 square meters raised 800 grass carp fire pieces, can produce about 13 centimeters of grass carp species 500 left