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Method for controlling exotic ageratum conyzoides

A weed and unified technology is applied in the field of ecological prevention and control of the invasion of exotic weeds such as red thistle, which can solve the problems of harm and pollution of the environment by chemical substances, and achieve the effect of good effect, convenient material collection, and short time for rebuilding vegetation

Inactive Publication Date: 2012-03-21
HUNAN UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(2) Using chemical control methods such as herbicides, this method can control the invasion of large areas of alien plants, but there is a hidden danger of polluting the environment with a large amount of chemical substances
(3) Introduce natural enemies from the origin of exotic plants to control exotic weeds. This biological control method can prevent and control malignant invasive weeds on a large scale, but there are new changes in biological control agents after the introduction that cause new hazards
Artificial control methods and chemical control methods are only effective for a short period of time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] From March 2009 to July 2010, a field experiment was carried out in the abandoned farmland around Hunan Xiangtan Manganese Mine.

[0033] Plant Material: Green Weed ( Celosia argentea ), Yellow Vanilla Osmanthus ( Melilotus officinalis ) and red thistle ( Ageratum conyzoides ).

[0034] Other materials: straw clippings and straw ash.

[0035] The implementation steps are as follows:

[0036] (1) First prepare the mixed matrix according to the weight ratio: 80% of straw clippings and 20% of straw ash.

[0037] (2) Control experiment of Shenghongji: In March 2009, an experimental sample plot was selected from the abandoned farmland around the manganese mine, and various plants in the sample plot were eradicated to create planting holes. The direction of the rows is the same; the distance between two adjacent planting holes in the same row is 30 cm, and the distance between two adjacent plant rows is 30 cm. 1.0 kg of mixed substrate was applied to each plant hole....

Embodiment 2

[0041] From March 2009 to July 2010, a field experiment was carried out in the abandoned farmland around Hunan Xiangtan Manganese Mine.

[0042] Plant Material: Green Weed ( Celosia argentea ), Yellow Vanilla Osmanthus ( Melilotus officinalis ) and red thistle ( Ageratum conyzoides ).

[0043] Other materials: straw clippings and straw ash.

[0044] The implementation steps are as follows:

[0045] (1) First prepare the mixed matrix according to the weight ratio: 85% of straw clippings and 15% of straw ash.

[0046](2) Control experiment of Shenghong thistle: In March 2009, an experimental sample plot was selected from the abandoned farmland around the manganese mine, and various plants in the sample plot were eradicated to create planting holes. The direction of the rows is the same; the distance between two adjacent planting holes in the same row is 30 cm, and the distance between two adjacent plant rows is 30 cm. Fill each plant hole with 1.2 kg of mixed substrate....

Embodiment 3

[0050] From March 2009 to July 2010, a field experiment was carried out in the abandoned farmland around Hunan Xiangtan Manganese Mine.

[0051] Plant Material: Green Weed ( Celosia argentea ), Yellow Vanilla Osmanthus ( Melilotus officinalis ) and red thistle ( Ageratum conyzoides ).

[0052] Other materials: straw clippings and straw ash.

[0053] The implementation steps are as follows:

[0054] (1) First prepare the mixed matrix according to the weight ratio: 90% of straw clippings and 10% of straw ash.

[0055] (2) Control experiment of Shenghong thistle: In March 2009, an experimental sample plot was selected from the abandoned farmland around the manganese mine, and various plants in the sample plot were eradicated to create planting holes. The direction of the rows is the same; the distance between two adjacent planting holes in the same row is 30 cm, and the distance between two adjacent plant rows is 30 cm. Fill each plant hole with 1.5 kg of mixed substrate...

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Abstract

The invention relates to a method for controlling invasion of exotic ageratum conyzoides. Materials used include celosia argentea, melilotus officinalis, ageratum conyzoides, rice straw cuttings and rice straw ash. After proportional preparation of the rice straw cuttings and the rice straw ash into a mixed substrate, the mixed substrate is filled into planting pockets made in a derelict land. The celosia argentea and the melilotus officinalis are interplanted in a same row, the ageratum conyzoides is planted between the celosia argentea and the melilotus officinalis, and the cyclic interplanting continues so. Vegetation with dominating celosia argentea and melilotus officinalis is constructed by the method in a short time, and growth of the ageratum conyzoides is restrained remarkably. The method has the advantages of convenience in obtaining the used plants which are all local seeds, easiness in growth of the plants, short vegetation constructing time, effectiveness in controlling exotic weeds, no risk and the like. The method can be used for an ecological restoration and invasion vulnerability reforming ecosystem for severely exotic weed invaded lands.

Description

technical field [0001] The invention relates to an ecological prevention and control method for the invasion of foreign weeds, red thistle. Background technique [0002] There are more than 180 kinds of foreign plants in my country, among which there are more than 100 kinds of foreign weeds in 23 families, and more than 10 kinds have become vicious invasive weeds, such as solidago canadensis ( Sodidago canadensis ) and red thistle ( Ageratum conyzoides )wait. The invasion of alien plants will affect the cycle of soil organisms and nutrients, cause the loss of biodiversity, change the direction of community evolution, destroy the integrity and stability of the ecosystem, and cause huge economic losses. Alien plant invasion has become a global ecological and economic problem. [0003] my country attaches great importance to the problem of alien species invasion. In the relevant scientific and technological planning, the prevention and control of alien pests has been listed...

Claims

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Application Information

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IPC IPC(8): A01G1/00C05G3/00
CPCY02A40/28
Inventor 向言词李勤奋刘阿梅彭秀花
Owner HUNAN UNIV OF SCI & TECH
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