Asparagus pond culture method

A cultivation method and technology of Astragalus, applied in the fields of botanical equipment and methods, climate change adaptation, gardening, etc., can solve the problem of high-yield cultivation of Astragalus in northern ponds, etc.

Inactive Publication Date: 2016-07-13
MARINE BIOLOGY INST OF SHANDONG PROVINCE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no method for high-

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  • Asparagus pond culture method

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Embodiment 1

[0067] 1. Pond culture environment

[0068] Shandong Laizhou Sea Cucumber Breeding Pond has an area of ​​800 square meters and an average water depth of 3 meters. The bottom of the pond is flat sand with an average transparency of 50cm. The water inlet pipeline is connected to the nearby sea area, and new seawater can be imported for 4 consecutive days during the spring tide, and the seawater is fresh and odorless. Open the drainage pipe at the same time as the water enters, and remove the stale seawater in time. During the breeding season, the salinity of the seawater in the pond is kept at 28‰~32‰. Due to the high density of sea cucumbers in this pond, the excrement of sea cucumbers makes the water color of the pond darker, and the pond has eutrophication.

[0069] 2. Vegetable selection: From the asparagus cultivated in Rongcheng sea area on April 10, choose the asparagus that grows well, has no disease and rot, is purple in color, and has few miscellaneous algae as the se...

Embodiment 2

[0094] 1. Pond culture environment

[0095] The fish breeding pond in Rushan, Shandong has an area of ​​1,800 square meters and an average water depth of 2.5 meters. The bottom of the pond is flat sand with a high mud content. The water inlet and drainage pipes are connected to the nearby sea area, and the sea water is fresh and odorless. During the breeding season, the salinity of seawater in the pond is maintained at 28‰~30‰. The fish breeding density in this pond is relatively low, but because of the discharge of industrialized breeding wastewater, its transparency changes little, and the pond has eutrophication.

[0096] 2. Vegetable selection: Asparagus with good growth, no disease and rot, purple color and few algae was selected from the Asparagus cultivated in Rongcheng Sea Area on April 20, and the length of the algae was about 25cm. During transportation, keep the transportation temperature not exceeding 25°C, and splash seawater at the same time to keep the asparag...

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Abstract

The invention relates to an asparagus pond culture method and belongs to the technical field of alga culture. The substrate of a pond is selected, a water inlet and outlet system is arranged, and seawater is directly introduced into the pond; a culture raft frame is arranged in the pond, the row length of a single culture raft is 30-50 m, and the direction of the rafts is parallel to the water inlet and outlet direction; each culture raft comprises mooring ropes, seedling ropes and a floating ball, wherein the floating ball and the seedling ropes are tied onto the mooring ropes, the line spacing of the mooring ropes in the culture raft is 2.5-4.5 m, 30-40 seedling ropes are hung on each row of single raft, and the space between the rafts is 1-4 m. Asparagus breeding alga seedling clamping is conducted, the distance between the alga body and the water surface is adjusted to be 20-70 cm during culture, and the alga body is washed in a swing mode; when the fresh weight of asparagus on each seedling rope reaches 4-6 kg, 1/2-3/4 weight of asparagus is harvested, and the rest continues to grow. By the adoption of the method, high-yield culture of asparagus in northern ponds is achieved, and the defect that asparagus can only be cultured in an open offshore area is overcome.

Description

technical field [0001] The invention relates to the technical field of seaweed cultivation, in particular to a pond cultivation method of asparagus. Background technique [0002] Mariculture is an important part of the aquaculture industry. It mainly breeds sea fish, shrimp, shellfish, algae, etc., and the farming methods are mainly raft culture, bottom seeding multiplication and cage culture. In recent years, pond culture, which is the main way of seawater cultivation, has developed rapidly, but there are also problems such as deterioration of seawater quality, which has led to a reduction in the economic output of pond culture. Practice has proved that polyculture of large seaweed in ponds is an economical, efficient and environmentally friendly method. However, there are still certain limitations in the types and methods of cultivation. Algae suitable for seawater cultivation may not be able to achieve normal growth in ponds; and in pond cultivation, the specific cultivat...

Claims

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Application Information

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IPC IPC(8): A01G33/00
CPCA01G33/00Y02A40/80
Inventor 王翔宇王志刚李莉
Owner MARINE BIOLOGY INST OF SHANDONG PROVINCE
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