Fish will eat rice in rice fields. What about "fish farming in rice fields" where fires spread all over the country?

The Ministry of Agriculture and Rural Affairs has vigorously developed the comprehensive farming method of "fish farming in rice fields" throughout the country, forming a relatively complete technical system and systematic management. Among them, "cultured fish" is a broad definition, including fish species, shellfish (for crayfish), crabs and other aquatic products, which is a combination of breeding and comprehensive production and management.

To put it bluntly, fish farming in rice fields is to provide natural habitats for fish, shrimp and crabs by using drainage ditches. Breeding fish and other animals can eliminate harmful insects in rice fields, and can also partially eliminate green plant debris and organic residues. At the same time, farmed small animals will also be transformed into excreta and metabolites, which will further enrich the water body and help improve rice yield. In addition, because there are a lot of organic matter in rice fields, this kind of organic matter will improve the clarity of water quality to a certain extent, thus improving zooplankton in water. In addition, the paddy field itself has the function of purifying water quality. Therefore, fish farming in paddy field is a green, pollution-free, natural and sustainable farming method, which flexibly applies ecological principles, reduces the use of chemical fertilizers, improves product quality and healthy nutrition level, and completes the stable development of feeding ecosystem.

Carassius auratus in paddy field is more suitable for the growth and development of local natural environment. Every autumn, we also set up the annual Golden Autumn Stone Fish Festival, which attracts tourists from all over the country during the festival and greatly promotes the local social and economic development. Fish farming in rice fields has become a general development trend in rural areas of Guangxi. Among them, according to fish farming in rice fields, fish can be used to devour pests and weeds in rice fields. At the same time, the excrement discharged by fish in rice fields can also be used as fertilizer for rice to promote each other and grow together. And when rice is harvested in autumn, it is also the day of rice harvest.

Fish farming in rice fields has achieved good results in most areas, but it is more suitable for environmental conditions. Especially for water resources, it is very strict. If rice is planted in some places with serious environmental pollution, the survival rate of fish in rice fields is very low, and it is difficult to market and promote.

The technical difficulty is greater than that of a fish pond with a large total water area, and the requirements for aquaculture technology are higher, not to mention "fish farming in rice fields" with poor water quality. Because the total area of water quality is relatively small, the regulations on water body, environmental temperature and natural environment are relatively strict. Moreover, when irrigating farmland, weeding dry fields, fertilizing seedlings, killing insects and harvesting, a little carelessness will cause harm to fish species with shallow water quality, and even a devastating blow.

In addition, the diversity and complexity of "fish farming in rice fields" make many farmers refuse to enter or quit. If they want to raise fish, some villages have rivers, ponds and other water quality waiting for them to feed, and the scale of breeding will be much larger than that of fish farming in rice fields, which is more suitable for its investment and development trend, and the technical level and operation difficulty need to be much smaller.