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What are the conditions for raising crabs?
Land does not occupy land, water does not occupy water ",a three-dimensional ecological farming mode of one water and two crops, and the combination of planting and breeding. The details are as follows:

1. Paddy field selection and engineering construction: Crab paddy field should be a field with good water quality and convenient water intake and drainage.

Second, the stocking of crab seedlings: it is appropriate to use fertilizer and water in the pond in production.

(1) Crab seedlings must be four days old, and flea larvae have become big-eyed larvae (that is, crab seedlings) for more than four days.

(2) Crab seedlings were desalinated for more than 24 hours at the salinity of 3 ‰ ~ 4 ‰.

Three, when buying crab seedlings, should identify the quality of crab seedlings, identification methods are as follows:

(1) Big-eyed larvae should have neat individual specifications.

(2) Crab seedlings with strong physique, strong activity and good quality, after draining water, grab a handful by hand, gently rub it and put it in a flat place, and the crab seedlings will quickly spread around.

(3) Crab fry stocking When the crab species meet the requirements of the fifth stage, they can be put into the wild for breeding. Before you put it into the field, you should plant aquatic plants in the rice field, and the varieties of aquatic plants should be diversified, so that all kinds of aquatic plants can grow in the field as much as possible; All kinds of aquatic plants should be sparse, symmetrical and mixed with each other in the shallow water area near the field, so as to ensure the coverage rate of aquatic plants in the crab ditch is about 30%.