Method for controlling moss in penaeus japonicas higher-place pond

A high-level pond and moss technology is applied in the field of moss control in high-level ponds of Penaeus japonica, which can solve the problems of difficult moss spreading, high cost, and high labor intensity, and achieve the effects of stabilizing the ecosystem, stabilizing water quality, and removing moss

Inactive Publication Date: 2016-02-17
MARINE FISHERIES RES INST OF ZHEJIANG
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AI-Extracted Technical Summary

Problems solved by technology

Although this method can better solve the problem of moss produced in the freshwater shrimp culture process, this method is more complicated, time-consuming and laborious, and has a higher cost, and this method is only aimed at the prevention of green shrimp pond moss, and it is not suitable for other species of shrimp culture. And the removal and control of the moss that has grown during the breeding process is not good
At present, methods such as manual salvage and chemical drug suppression are mostly ...
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Method used

After the black plastic film is laid on the pool wall, drop into the amino acid fertilizer and water paste in the high position pond every 4d to carry out the fertilizer water to the water body, specifically, in the present embodiment, every meter of water depth in the high position pond of every mu uses 1kg, and the amino acid fertilizer and water paste makes the water body The beneficial diatoms and green algae in the water grow and multiply rapidly, thereby inhibiting the growth of moss through nutrient competition, stabilizing water quality and color, cultivating more beneficial algae, and maintaining the transparency below 15cm. After 8 days of fertilizer water, the moss on the pool wall basically died. The black plastic film laid on the pool wall was put away, and water was injected into the high-level pool and the water level returned to the initial height. Then, EM bacterial agent was added to the pool every 3 days to make the water body transparent. 30-40cm, and the pH value is stable at...
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Abstract

The invention relates to a method for controlling moss in a penaeus japonicas higher-place pond. The method comprises the following steps: (1) when mosses are found on pond walls of a higher-place pond in an intensive culture process, reducing water level of the higher-place pond, to make 30% to 35% mosses expose out of water; (2) fixing and paving black plastic films along the peripheral pond walls of the higher-place pond; (3) after that, putting amino acid fertilizer water paste in the water of the higher-place pond to make water rich every other 3-5 days; (4) after 7-10 d, after the mosses on the pond walls almost die, putting away the black plastic films on the pond walls; (5) filling water in the higher-place pond, and water level recovering to initial height, then putting aquaculture probiotics into the pond every other 3-5 days, to make water transparency of the water reach 30-40 cm, and pH value being stabilized between 7.8 and 8.2. The method is simple and easy to operate, and is environmentally friendly and economical, and effectively controls mosses by the method of removing the mosses in an earlier stage and restricting the mosses in the later stage. The method provides a stable ecological system for pond culture of penaeus japonicas in the higher-place pond, and thoroughly eliminates the mosses and controls growth of the mosses.

Application Domain

Pisciculture and aquariaCultivating equipments +3

Technology Topic

FertilizerIntensive culture +11

Examples

  • Experimental program(3)

Example Embodiment

[0017] Example 1:
[0018] The pond area of ​​the Japanese shrimp high-level pond is 1 mu (length, width and depth are: 30m, 22m, 2m respectively, and the slope of the pond wall is about 60 degrees), and the water depth is 1.7m. During the breeding process, it was found that moss was growing on the wall of the high-level pond, and the water level of the pond was lowered to 1.2m in time, so that about 30% of the moss was exposed outside the water body.
[0019] Cut the black plastic film according to the size and specification of the high-level pond in this example, and roll up the edge of the cut black plastic film to make a cylindrical bag with a size of 2 cm directly. Finally, the treated black plastic film was spread on the pool wall of the high-level pool, and the black plastic film was fixed by the surface tension of water and the weight of fine sand. The black plastic film can protect from light, prevent the moss from photosynthesis, and inhibit its growth. The cylindrical bag filled with fine sand can not only fix the black plastic film, but also prevent the Japanese prawns from drilling into the black plastic film. In addition, the plastic film can isolate the dissolved oxygen in the water to a certain extent, make the moss anoxic, inhibit its respiration, and accelerate its death, while the black plastic film can absorb heat, and the temperature in the film increases under direct sunlight, making the exposed The moss outside the water dies due to the high temperature.
[0020] After the black plastic film is laid on the pond wall, every 3d, the amino acid fertilizer and water paste is put into the high-level pond to fertilize the water body. Specifically, in the present embodiment, every acre of high-level pool pond uses 0.8kg for every meter of water depth, and the amino acid fertilizer and water paste makes the water body in the water body. The beneficial diatoms and green algae grow and multiply rapidly, thereby inhibiting the growth of moss through nutrient competition, stabilizing the water quality and color, cultivating more beneficial algae, and maintaining the transparency below 15cm. After 7 days of fertilizer and water, the moss on the pool wall basically died, the black plastic film laid on the pool wall was put away, water was injected into the high-level pool and the water level returned to the initial height, and then EM bacteria agent was injected into the pool every 2d to make the water transparency reach 30~40cm, pH value is stable at 7.8~8.2.
[0021] In this embodiment, the moss that grows can be removed and killed within 7 days by this method, and no moss grows during the whole intensive cultivation process thereafter.

Example Embodiment

[0022] Example 2:
[0023] The pond area of ​​the Japanese shrimp high-level pond is 1 mu (length, width and depth are: 30m, 22m, 2m respectively, and the slope of the pond wall is about 60 degrees), and the water depth is 1.7m. During the breeding process, it was found that moss was growing on the wall of the high-level pond, and the water level of the pond was lowered to 1m in time, so that about 35% of the moss was exposed outside the water body.
[0024] The black plastic film is cut according to the specifications of the high-level pond in this embodiment, and the edge of the cut black plastic film is rolled up and made into a cylindrical bag with a size of 3 cm directly. The bag was sealed, and finally the treated black plastic film was spread on the pool wall of the high-level pool. The black plastic film can protect from light, prevent the moss from photosynthesis, and inhibit its growth. The cylindrical bag containing the gravel can not only fix the black plastic film, but also prevent the Japanese prawns from drilling into the black plastic film. In addition, the plastic film can isolate the dissolved oxygen in the water to a certain extent, make the moss anoxic, inhibit its respiration, and accelerate its death, while the black plastic film can absorb heat, and the temperature in the film increases under direct sunlight, making the exposed The moss outside the water dies due to the high temperature.
[0025] After the black plastic film is laid on the pond wall, the amino acid fertilizer and water paste is put into the high-level pond every 4d to fertilize the water body. Specifically, in the present embodiment, every acre of high-level pool pond uses 1kg for every meter of water depth, and the amino acid fertilizer and water paste makes the water body beneficial. Diatoms and green algae grow and multiply rapidly, thereby inhibiting the growth of moss through nutrient competition, stabilizing water quality and water color, cultivating more beneficial algae, and maintaining transparency below 15cm. After 8 days of fertilizer and water, the moss on the pool wall basically died, the black plastic film laid on the pool wall was put away, water was injected into the high-level pool and the water level returned to the initial height, and then EM bacteria agent was injected into the pool every 3 days to make the water transparency reach 30~40cm, pH value is stable at 7.8~8.2.
[0026] In this embodiment, the moss that grows can be removed and killed within 8 days by this method, and no moss grows during the whole intensive cultivation process thereafter.

Example Embodiment

[0027] Example 3:
[0028] The pond area of ​​the Japanese shrimp high-level pond is 1 mu (length, width and depth are: 30m, 22m, 2m respectively, and the slope of the pond wall is about 60 degrees), and the water depth is 1.7m. During the breeding process, it was found that moss was growing on the wall of the high-level pond, and the water level of the pond was lowered to 1.2m in time, so that 32% of the moss was exposed outside the water body.
[0029] Cut the black plastic film according to the specifications of the high-level pond in this embodiment, and roll up the edge of the cut black plastic film and make a cylindrical bag with a size of 2 cm directly. The bag was sealed, and finally the treated black plastic film was spread on the pool wall of the high-level pool. The black plastic film can protect from light, prevent the moss from photosynthesis, and inhibit its growth. The cylindrical bag filled with fine sand can not only fix the black plastic film, but also prevent Japanese prawns from drilling into the black plastic film. In addition, the plastic film can isolate the dissolved oxygen in the water to a certain extent, make the moss anoxic, inhibit its respiration, and accelerate its death, while the black plastic film can absorb heat, and the temperature in the film increases under direct sunlight, making the exposed The moss outside the water dies due to the high temperature.
[0030]After the black plastic film is laid on the pond wall, the amino acid fertilizer and water paste is put in every 5d to fertilize the water body. Specifically, in the present embodiment, 1.2kg is used for every meter of water depth in every mu of high-level pond pond, and the amino acid fertilizer and water paste makes the beneficial diatoms in the water body, Green algae grow and multiply rapidly, thereby inhibiting the growth of moss through nutrient competition, stabilizing water quality and color, cultivating more beneficial algae, and maintaining transparency below 15cm. After 10 days of fertilizer and water, the moss on the pool wall basically died, the black plastic film laid on the pool wall was put away, water was injected into the high-level pool and the water level returned to the initial height, and then EM inoculants and Bacillus inoculants were poured into the pool every 4d. , so that the transparency of the water body reaches 30-40cm, and the pH value is stable at 7.8-8.2.
[0031] In this embodiment, the moss that grows can be removed and killed within 10 days by this method, and no moss grows during the whole intensive cultivation process thereafter.

PUM

PropertyMeasurementUnit
Water transparency30.0 ~ 40.0cm

Description & Claims & Application Information

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