Duckweed cultivation method

A breeding method and duckweed technology, applied in the field of wild plant cultivation, can solve problems such as lack of technical guidance for the growth of duckweed, and achieve the effects of simple operation and high yield

Inactive Publication Date: 2013-05-15
万世凤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention lacks technical guidance for the growth of duckweed in a low-temperature environment

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0008] To breed duckweed in winter, first select the breeding pond. The breeding ponds are artificially excavated ditches. A plastic greenhouse is built on the breeding pond, and the plastic greenhouse is covered with a non-drip film. The non-drip film can prevent the temperature in the greenhouse from dropping at night, and there will be no water droplets falling to make the duckweed rot. The plastic greenhouse is an arched shed, so that it is convenient to catch duckweed in the future. After the plastic greenhouse is built, the duckweed is stocked with water. After the duckweed is put in a suitable place to breed, put straw and poultry manure into the breeding pond to make it rotten to increase the fertility of the breeding pond and promote the wild growth of duckweed. In winter, the plastic greenhouse is warm and humid, and duckweed breeds rapidly. When duckweed grows and piles up on the water surface of the culture pond, fish the accumulated duckweed. The harvested du...

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PUM

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Abstract

The invention discloses a duckweed cultivation method and aims to provide a measure which is suitable for keeping vigorous growth of duckweeds in winter. The technical scheme of the duckweed cultivation method is that an anti-drop film is covered on a cultivation tank. The duckweed cultivation method disclosed by the invention is operated according to the following steps of: (1) selecting the cultivation tank; (2) building a vinyl house on the cultivation tank and covering an anti-drop film on the vinyl house; (3) cultivating the duckweeds; and (4) fishing the piled duckweeds. The technical scheme adopted by the invention is simple and convenient to operate; and the output of the duckweeds cultivated by the technical scheme is high so as to provide a lot of green fodders for poultry and livestock in winter.

Description

[0001] technical field [0002] The present invention relates to wild plant breeding technology. Background technique [0003] The specification of application number 200580010145.9 discloses the expression of plasminogen and microplasminogen in duckweed. The invention provides methods and compositions for producing recombinant plasminogen, microplasminogen and fragments thereof in a duckweed expression system. It is a new discovery of the present invention that the duckweed expression system can be used to produce high-level plasminogen and microplasminogen. Plasminogen and microplasminogen produced by duckweed can be activated to produce polypeptides with protease activity. The invention includes methods for expressing plasminogen, microplasminogen and fragments thereof in duckweed, duckweed plants transformed with expression cassettes expressing plasminogen, microplasminogen and fragments thereof, and comprising Nucleic acids encoding nucleotide sequences of pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G31/00
Inventor 万世凤
Owner 万世凤
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