Crawfish organic ecology culture method

Abstract

The invention relates to a crawfish organic ecology culture method comprising the following steps: building two or three of the following modules: a pond culture module, a rice field culture module and a lotus rhizome field culture module; digging gutters in rice field culture units and lotus rhizome field culture units; using separation dams and trenches to build a circulating water system; planting waterweeds in the pond; using a sectioned catching and stocking rotation mode to culture crawfish in the pond; carrying out crawfish-rice organic polyculture in the rice field culture units, and transferring crawfishes to the gutters or other modules for re-culture in a rice field sorting process; carrying out crawfish-lotus rhizome organic polyculture in each lotus rhizome field culture unit, and transferring the crawfishes to other modules for re-culture in a lotus rhizome leaf initial grow period. The crawfish organic ecology culture method can realize nutrients cycle complementation utilization, can ensure water body oxygen dissolving, can prevent medicament application, and can realize crawfish nature transition transfer between rice field culture and lotus rhizome field culture, thus finally realizing high yield, high quality and environment friendly organic ecology culture.

Description

Technical field [0001] The invention belongs to the technical field of crayfish breeding, and particularly relates to a method for organic ecological breeding of crayfish. Background technique [0002] Traditional Chinese crayfish farming mainly includes three models: pond farming, paddy farming and lotus root farming. [0003] As the most common cultivation method, crayfish pond culture has the characteristics of large breeding volume and unified management. However, crayfish have higher requirements for dissolved oxygen in the water body during the breeding process. The pond water body is deep and the bottom of the water body is prone to hypoxia, which leads to an increase in the mortality of crayfish. Therefore, in traditional pond culture, large The way of discharging large amounts of water changes the water body of the pond, which easily causes the instability of the water quality of the pond, and at the same time, a large amount of nutrients are lost during the water change ...

AI Technical Summary

Problems solved by technology

However, general rice fields need to manage diseases, insect pests and weeds. A large amount of pesticides, herbicides and other toxic chemicals are used. As a crustacean (rich in polysaccharide structure) animals, crayfish have a stronger ability to accumulate harmful substances. Therefore, crayfish The quality of the product cannot be guaranteed, and at the same time, it pollutes the water body

In addition, the maturity periods of the two types of economic products are different, resulting in the need to catch crayfish during the empty window between multi-crop rice crops, resulting in insufficient growth period for some crayfish

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