Comprehensive rice, shrimp and crab planting and breeding method and device

Abstract

The invention belongs to the technical field of comprehensive planting and breeding and discloses a comprehensive rice, shrimp and crab planting and breeding method and device. The device comprises arice planting zone, a larva culture pond and a shrimp and crab breeding purification pond. The method comprises the following steps: performing comprehensive rice, shrimp and crab planting and breeding in the rice planting zone; constructing the larva culture pond for culturing larvae of shrimps and crabs below the rice planting zone; constructing the shrimp and crab breeding purification pond above the rice planting zone; and through the shrimp and crab breeding purification pond, performing primary purification on sewage generated in the breeding process, enabling the sewage to flow by selfinto the rice planting zone, performing sewage utilization, and further pumping the sewage back to the shrimp and crab breeding purification pond. By adopting the mode that rice planting and shrimp and crab breeding are combined, the utilization rate of a rice field can be increased. Straw collected after rice is harvested is converted and utilized to make a natural feed for shrimps and crabs, residual feeds and excrement generated in the shrimp and crab breeding process can be used as an organic fertilizer for growth of rice, then a planting and breeding system with mutualistic symbiosis of shrimps, crabs and rice is formed, and both the cost can be reduced and the yields and quality of rice, shrimps and crabs can be improved.

Description

technical field [0001] The invention belongs to the technical field of comprehensive planting and breeding, and in particular relates to a method and device for comprehensive planting and breeding of rice shrimp and crab. Background technique [0002] At present, comprehensive planting refers to making full use of the relationship between the living habits and growth laws of animals and plants, putting rice, eels, soft-shelled turtles, crayfish, fish and other animals in the same rice field, making full use of the relationship between their biological chain and food chain , to achieve a mutually beneficial symbiosis, high-yield and high-efficiency planting and breeding combination mode. Hehuayu is a variant of group carp, also known as Hehuawu carp, Hehua carp and Wu carp. It belongs to the warm-water fish of Cyprinidae. Named for food, it is a high-quality breeding variety with local characteristics, deeply loved by farmers and consumers. Now the introduction and promotio...

AI Technical Summary

Problems solved by technology

[0006] (1) The existing rice-fish comprehensive breeding still has problems such as low yield and high technical difficulty

[0007] (2) The planting and breeding device in the prior art scheme is relatively complicated, the cost is high, and the paddy field area is fixedly occupied, the device is heavy, and it is inconvenient to disassemble, which is extremely unfavorable for popularization and use in poor mountainous areas

[0008] (3) In the existing technical scheme, it is required that when the regenerated rice is harvested in the first season, the height of the rice pile should be kept at 35-45cm, which requires the rice pile to be very high, which is difficult to achieve in the actual planting process

[0009] (4) In the prior art, organic wastes such as feces and urine and inexhaustible feed discharged by the breeding objects in the aquaculture water body will continuously deteriorate the water quality and affect the quality of aquatic products

Images