Method for cage cultivation of myriophyllum spicatum

A technology for cultivating foxtail splendens and cages, which is applied in the fields of botanical equipment and methods, seaweed cultivation, climate change adaptation, etc., to achieve the effect of promoting plant growth

Inactive Publication Date: 2014-03-05
HUBEI UNIV OF TECH
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Problems solved by technology

In the present invention, through the method of closed net cage culture, the chrysalis spicaculata grows fixedly on the substrate at the bottom of the net cage, and after the transparency increases (increased underwater illuminance), the suspension depth of the net cage is gradually increased, and the deepest can reach 5 meters. depth, thereby solving the problem of introduction of pioneer species for ecological reconstruction of deep water bodies

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  • Method for cage cultivation of myriophyllum spicatum

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Embodiment 1

[0027] Embodiment 1 Yichang Qingjiang Gaobazhou Net Cage Breeding Foxtail Spiraflora

[0028] (1) Cage layout: The size of the cage is 4×2×1.5 meters (length×width×height). The cages are arranged in the cage fish culture area of ​​Gaobazhou Reservoir. The average water depth of the layout area is 5 meters. Floating bodies and ropes are used. Adjust the hanging depth.

[0029] (2) On March 25, inoculate P. spicanus in net cages. The inoculation method is to directly put rooted 0.5-meter-long P. spica grass seedlings into the cages, and the inoculation density is 10 plants / square meter; The hanging depth of the box is 2.7 meters (the depth of water transparency is 1.8 meters).

[0030] (3) 12 tails of 12cm-sized pomfret were stocked in the cage to scrape the attached algae on the mesh and maintain the water permeability of the mesh.

[0031] (4) On May 27, the depth of water transparency was 1.3 meters, and the suspension depth of the cages was adjusted to 2.4 meters.

[00...

Embodiment 2

[0034] Example 2 Cage cultivation of P. spicanus in Nanhu Lake, Wuhan

[0035] (1) Cage arrangement: The size of the cage is 3×2×1.5 meters (length×width×height). The cages are arranged in the center of Nanhu Lake. The average water depth of the arrangement area is 2.6 meters. The floating body and ropes are used to adjust the suspension depth.

[0036] (2) On April 10, inoculate the net cage with Trichosanthes spicaculata, the inoculation method is to directly put the rooted 0.5-meter-long Trichosanthes spica grass seedlings into the net cage, and the inoculation density is 8 plants / square meter; The hanging depth of the box is 1.5 meters (the depth of water transparency is 0.6 meters).

[0037] (3) 18 pomfrets with a size of 10 cm were stocked in the cage to scrape the attached algae on the mesh and maintain the water permeability of the mesh.

[0038] (4) On June 4, the depth of transparency of the water body was 0.48 meters, and the suspension depth of the cages was adj...

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Abstract

The invention discloses a method for cage cultivation of myriophyllum spicatum and belongs to the fields of water environmental protection and water ecological reconstruction. The myriophyllum spicatum is planted in a suspension cage and light requirements in water can be met through adjustment of suspension depth. The suspension cage comprises floating bodies and a cage which are connected through ropes. The method includes the steps: arranging the suspension cage in a water body with water depth exceeding 1.5 meters; inoculating the myriophyllum spicatum starting from March each year; breeding plagiognathops microlepis or silver todarades in the cage; monthly measuring change of water transparency from April to October each year and adjusting the suspension depth according to the water transparency; harvesting the myriophyllum spicatum during October and November each year. By the method, the myriophyllum spicatum can fixedly grow on a bottom substrate of the cage, the myriophyllum spicatum can be prevented from being chewed and eaten by herbivorous fishes, infringement of stormy waves upon plants can be resisted, and an introducing problem of the myriophyllum spicatum is solved.

Description

[0001] Technical field [0002] The present invention is a method of water environmental protection and water ecological reconstruction, involving a method of breeding spikes and fox tail algae. Background technique [0003] At present, the quality of the water environment in my country is generally poor, and its nutritionalization is common (more N and P in water bodies), which seriously affects water supply quality, water ecological stability, water body landscape and aquaculture. [0004] The ears and fox tail algae is a common aquatic plant in my country. It has strong adaptability. It can develop well in various water bodies. It is a happy plant. Compared with other sinking plants, it has a high photological rate. The effect of absorbing N and P in the water body and increasing the transparency of water bodies is often used as pioneer species in the repair and reconstruction of freshwater ecosystems.However, its growth is limited by underwater light, and it is difficult to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G33/00
CPCY02A40/80
Inventor 万端极梁智博李斌刘德富赵以军廖明军程凯高健杨正键纪道斌李祝
Owner HUBEI UNIV OF TECH
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