Rice-fish culture method for protecting terrace with fish and terrace structure

Abstract

The invention belongs to the technical field of aquaculture and particularly relates to a rice-fish culture method for protecting a terrace with fish and a terrace structure. According to the method,the terrace is protected by the fish, so that the problem that a Hani terrace is fallow in winter is solved; the absorption and metabolism of various substances of a water and soil system of the terrace can be quickened through introduction of carps, therefore, the contents of nitrogen and phosphorus of the terrace after aquaculture are improved, and the soil is more fertile. The terrace structuremainly comprises a parent culture pond, a seedling culture pond, a circulating purification pond and a winter fallow field, wherein each of the parent culture pond, the seedling culture pond and thewinter fallow field is provided with a pipeline, through which mountain spring water flows; each of the parent culture pond and the seedling culture pond is provided with a pipeline communicated withthe circulating purification pond; a pipeline is communicated with the circulating purification pond and the winter fallow field. An aquaculture method comprises the following steps: introducing high-quality parents; building the parent culture pond for culturing the high-quality parents; building the seedling culture pond for culturing high-quality seedlings; transforming the winter fallow field,storing water for nourishing the field and introducing the high-quality seedlings for culture; and managing aquaculture.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a rice-fish co-cropping method and a terraced field structure using fish to protect fields. Background technique [0002] Carp can usually live in water bodies of 0-37°C, and the suitable water temperature is 15-30°C. It is a bottom fish that inhabits the soft bottom of the water area and where aquatic plants are overgrown. It likes to look for food in the mud layer with humus. Adaptability Strong, cold-resistant, alkali-resistant, low-oxygen resistant, not demanding on water bodies, and able to survive in various water bodies. In the Hani Terraced Fields area of ​​Yunnan Province, there has always been a custom of raising carp during the rice planting season, and the locals call it rice flower fish. However, with the passage of time, carp are getting smaller and smaller, sexual maturity is early, and the degradation of planting resources is becoming more and mor...

AI Technical Summary

Problems solved by technology

The fields are unproductive during this period, so resources are greatly wasted

[0006] 2. Lack of farming technology. Although Honghe County has had the custom of raising fish in rice fields since ancient times, due to the extensive farming of free-range farming, the growth is slow and the yield is low, and it has hardly produced obvious economic benefits except for food for the family; Moreover, the Hani people have lived in mountainous areas for generations and are relatively isolated from the outside world. They know little about the cultivation of ecological bait and the prevention and treatment of fish diseases, so they are weak and poor.

[0007] 3. Germplasm resources are degraded. After many generations of breeding and breeding, the adult fish of rice field fish farming are often small and thin, and precocious, which greatly limits the development of the local economy, and the product quality cannot keep up with the needs of consumers. , so the market share is gradually decreasing, which is an obvious dampening to farmers' enthusiasm for breeding

[0008] 4. Water and soil fertility is scarce, farmers’ income is low, and it is very difficult to purchase fertilizers. It is also difficult to transport high-quality compound fertilizers to the top of the mountain due to the winding and rugged mountain roads. Therefore, how to make full use of the remaining straw after rice field harvesting and transform it The usable fertility of rice and how to increase nutrition from foreign aid are urgent problems to be solved at present

[0009] 5. Absence of modern detection technology. In order to increase production and reduce the occurrence of diseases and insect pests in paddy field fish farming, modern detection technology is essential. A series of losses such as death due to lack of oxygen or decreased immunity of fish and increased parasitic diseases

Furthermore, the local economy is generally difficult, and the breeds of carp farmed have long been degraded. Individuals are relatively small and emaciated and precocious, and there is a lack of new seedlings and introduction of high-quality species.

In addition, due to the terraced fields, the water body lacks fertility, and the straw that can be used as a source of paddy field fertility has not been effectively transformed and utilized.

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