New method for preventing and controlling moss to culture river crab

A new method, moss technology, is applied in the field of moss prevention and control of river crabs. It can solve the problems of affecting the growth of aquatic plants, easily corrupting water quality, aging and death of aquatic plants, etc., and achieves the effect of good effect, growth prevention and control, and simple operation.

Inactive Publication Date: 2016-07-06
李元刚
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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 feel

Method used

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Embodiment Construction

[0014] 1. Clean and disinfect. After harvesting the cultured species in winter, drain the pond water, clear the pond, remove the weeds in the pond, expose to the sun and freeze, and sprinkle the whole pond with quicklime at a quantified slurry of 150 kg / mu. One week before stocking, use 20 kg / mu of tea seed cake (soaked in warm water for one night) to clear the pond to kill harmful wild fish, etc. Generally, the toxicity of tea seed cake will disappear after 7 days. The application of tea seed cake can make the single-cell algae multiply rapidly, have the effect of fertilizing water to cultivate algae, and can inhibit the growth and germination of moss.

[0015] 2. Apply appropriate fertilizer and water in the early stage. After the crab pond enters the water, apply 100-200 kg of fermented and decomposed manure per mu. At the same time, take the following preventive measures: use golden diatom (1 kg / mu) + amino acid algae calcium fertilizer (0.8 liters / mu) on the first day, a...

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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...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K1/14
CPCY02A40/81
Inventor 李元刚
Owner 李元刚
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