How to raise fish in rice fields?

Fish culture in paddy field, also known as "bottom fish", is one of the traditional farmland production methods in mountainous and hilly areas of southern China, and it is a group of excellent farmland ecosystems created by working people in China through long-term practice.

Traditional Chinese agriculture mainly uses organic fertilizers, such as human and animal manure, straw and green manure. However, the application of organic fertilizer in rice fields will breed many microorganisms and plankton, which is a good bait for fish. When raising fish in rice fields, fish feed on plankton and weeds in the fields. Not only can fish compete less with rice for fertilizer, but fish feces and food residues also become organic fertilizers for rice. In this way, fish and rice were raised in rice fields, and rice fields became a "land of fish and rice".

Fish farming in rice fields preys on pests that live in or fall into water, reducing the harm of pests to rice and reducing the amount of chemical pesticides, thus reducing the pollution of farmland environment. Therefore, fish culture in paddy field is also a biological control measure, which has a certain effect on improving farmland environment and maintaining ecological balance.