New method for preventing and controlling moss to culture river crab

Abstract

Provided is a new method for preventing and controlling moss to culture river crabs. The special point is that the method comprises cleaning up and disinfecting, moderately fertilizing water in an early stage, planting multi-variety aquatic plants, changing a margaryamelanoides putting method, stocking plagiognathops microlepis in a matched manner, moss dying after chemicals are used for three days when little moss is found in water, and other processes. Using the above technical scheme can realize the new method for preventing and controlling moss to culture river crabs. The method is simple in operation and good in effect, and is especially suitable to be used for culture the river crabs in large area, and the method effectively prevents and controls growth of moss.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a new method for cultivating river crabs to prevent moss. Background technique [0002] After the weather gets warmer in spring and the temperature rises above 10°C, the moss begins to multiply and grow in the shallow water of the pond. In the early stage, it grows like hair on the bottom of the pond, and the upper end stands upright in the water. As the temperature rises, the moss proliferates in large numbers, and when it is severe, it hangs in the water like a net, forming a mess of threads. Moss breaks away from the bottom of the pool when it is old, and turns into cotton wool floating on the water surface. It is yellow-green in color and feels greasy. Contents of the invention [0003] In order to solve the deficiency in the current aquaculture technology, the invention invents a new method for cultivating river crabs to prevent moss. [0004] In order to solve the above-menti...

AI Technical Summary

Problems solved by technology

When the moss is old, it breaks off the bottom of the pool and turns into cotton wool floating on the water surface. It is yellow-green in color and feels greasy. In severe cases, it will also affect the growth of aquatic plants, cause the aquatic plants to age and die, and easily damage the water quality.