Why can fish and rice symbiosis apply for a patent?

This mode of production is innovative and practical. Patents are China National Intellectual Property Administration's protection for applicants' technological innovation. Fish-rice co-cultivation is a new agricultural production model. Through the combination of aquaculture and rice planting, the development model of ecological aquaculture has been realized and a recyclable ecological food chain has been formed. This mode of production is innovative and practical and can be patented.