Method for crab intercropping in rice field

Abstract

The invention discloses a method for crab intercropping in a rice field. The method comprises the steps of selection and transformation of a rice field, selection of a rice variety, crab releasing, breeding management and rice field management; compared with the prior art, the breeding method is scientific and reasonable, the rice field is utilized for crab intercropping, and rice, crabs and aquatic plants are integrated into one correlated body; the growth of the rice and the crabs is promoted, the yield of the rice field per unit area is significantly increased, and scientific management andfeed adding achieve that the survival rate of the crabs is high, the growing speed is high, the content of nutrition in crab meat is high, and the taste is good; the method effectively ensures the nutritive value of the bred crabs and has the advantage that the survival rate of the crabs is high.

Description

technical field [0001] The invention relates to a method for nesting crabs in paddy fields, belonging to the technical field of breeding. Background technique [0002] Raising crabs in rice fields is to make full use of ecological conditions such as shallow water level, high water temperature, sufficient dissolved oxygen, rich bait, and artificial bait that can provide habitat and avoidance places for river crabs, implement scientific management, and properly solve the contradiction in the symbiosis of rice and crabs , forming a high-efficiency ecosystem in which rice and crab symbiosis are beneficial to each other. [0003] Crab is one of common food in life, and crab is deeply liked by people in the market, yet existing crab generally uses hormone or pesticide, and growth speed is fast, and pesticide composition remains in the body, endangers the health of eater. [0004] Raising crabs in rice fields in the prior art has the following disadvantages. First, the number of c...

AI Technical Summary

Problems solved by technology

[0003] Crabs are one of the common foods in daily life. Crabs are very popular in the market. However, the existing crabs generally use hormones or pesticides, which grow fast and contain pesticides in their bodies, which endanger the health of eaters.

[0004] Raising crabs in rice fields in the prior art has the following disadvantages. First, the number of crabs is large, the excrement is more, and the feed for feeding is more, which will easily lead to eutrophication of water in the paddy fields, making rice easy to flourish and water. The decrease in oxygen content in the water is not conducive to the healthy growth of crabs and rice. Secondly, in order to overcome the problem of poor water quality for a long time in the prior art, the method of changing water frequently is usually adopted. Generally, the water needs to be changed once every ten to half months. Therefore, the amount of water exchange is very large, resulting in waste of water resources and greatly increasing the cost of breeding