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农田生态因子错综复杂,生物因子包括植物、动物和微生物;非生物因子包括水、土、热、气,它们之间互相依存又互相制约。稻田养鱼互利助生,鱼能为稻除草、除虫、松土、增肥;稻为鱼提供呼吸的氧气、栖息场所,以及田间饵料。为摸索种、养有机结合的途径,以提高稻区的生态效益和经济效益,于1985年我们作了稻田放养鱼苗对
Ecological factors of farmland are complex. Biological factors include plants, animals and microorganisms. Non-biological factors include water, soil, heat and gas, which are interdependent and mutually restrictive. Mutual benefit rice farming fish, fish can weeding, pest control, loosening, fertilizer; rice to provide breathing oxygen, habitat, and the field of food. In order to explore the species, the method of organic integration, in order to improve the ecological and economic benefits of rice, in 1985 we made the stocking of rice in the paddy field