Method of using native plants to control growth of exotic ageratum conyzoides

A weed and local technology, applied in botany equipment and methods, applications, horticulture, etc., can solve the secondary pollution of chemical control methods, and achieve the effect of rebuilding vegetation with short time, good effect and no ecological risk

Inactive Publication Date: 2013-01-23
HUNAN UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biological control methods may have potential hazards, chemical control methods will cause secondary pollution, and physical control methods are only applicable to small areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] From March 2008 to July 2010, a field experiment was carried out in the abandoned farmland around Hunan Xiangtan Manganese Mine.

[0029] Plant Material: Cocklebur ( Xanthium sibiricum ), amaranth ( Amaranthus paniculatus ), Polygonum orientalis ( Polygonum orientale ), Huicai ( Chenopodium album ) and red thistle ( Ageratum conyzoides ).

[0030] Other materials: cow dung, rapeseed cake and rape straw.

[0031] The implementation steps are as follows:

[0032] (1) When preparing the mixed matrix, the dry weight ratio of cow dung, rapeseed cake and rape straw is 5.5:3.0:1.5.

[0033] (2) Control experiment of Shenghongji: In March 2008, a sample plot was selected from the abandoned farmland around the manganese mine, and various plants in the sample plot were eradicated to create a circular planting pit. The specification of the planting pit was: radius 30cm , 30cm deep. The planting pits are arranged in a straight line; the distance between two adjacent pla...

Embodiment 2

[0037] From March 2008 to July 2010, a field experiment was carried out in the abandoned farmland around Hunan Xiangtan Manganese Mine.

[0038] Plant Material: Cocklebur ( Xanthium sibiricum ), amaranth ( Amaranthus paniculatus ), Polygonum orientalis ( Polygonum orientale ), Huicai ( Chenopodium album ) and red thistle ( Ageratum conyzoides ).

[0039] Other materials: cow dung, rapeseed cake and rape straw.

[0040] The implementation steps are as follows:

[0041] (1) When preparing the mixed matrix, the dry weight ratio of cow dung, rapeseed cake and rape straw is 6.5:2.3:1.2.

[0042] (2) Control experiment of Shenghongji: In March 2008, a sample plot was selected from the abandoned farmland around the manganese mine, and various plants in the sample plot were eradicated to create a circular planting pit. The specification of the planting pit was: radius 35cm , 30cm deep. The planting pits are arranged in a straight line; the distance between two adjacent pla...

Embodiment 3

[0046] From March 2008 to August 2010, a field experiment was conducted on the abandoned farmland around Hunan Xiangtan Manganese Mine.

[0047] Plant Material: Cocklebur ( Xanthium sibiricum ), amaranth ( Amaranthus paniculatus ), Polygonum orientalis ( Polygonum orientale ), Huicai ( Chenopodium album ) and red thistle ( Ageratum conyzoides ).

[0048] Other materials: cow dung, rapeseed cake and rape straw.

[0049] The implementation steps are as follows:

[0050] (1) When preparing the mixed matrix, the dry weight ratio of cow dung, rapeseed cake and rape straw is 7.5:1.5:1.0.

[0051] (2) Control experiment of Shenghongji: In March 2008, 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 a planting pit. The specifications of the planting pit were: radius 40cm, 30cm deep. The planting pits are arranged in a straight line; the distance between two adjace...

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Abstract

The invention discloses a method of using native plants to control growth of exotic ageratum conyzoides, which includes: selecting sample plots from abandoned lands suitable for growth of ageratum conyzoides, eradicating various plants in the sample plots, digging planting pits, mixedly planting xanthiumsibiricum, amaranthus paniculatus, polygonum orientale and chenopodium album into the plantingpits, interplanting the ageratum conyzoides among the former plants, and performing the cycle for interplanting. The xanthiumsibiricum, the amaranthus paniculatus, the polygonum orientale and the chenopodium album are all resistant to allopathic stress from the ageratum conyzoides, and can be mixedly planted to inhibit growth of the ageratum conyzoides and resist its invasion. The method has the advantages that the plants used in the method are all native and easy to propagate and grow fast, revegetation is short, exotic weed control is effective, management is easy, no ecological risks occurand the like.

Description

technical field [0001] The invention relates to a method for preventing and controlling the invasion of foreign weeds, red thistle. Background technique [0002] Alien plant invasion has become a global ecological and economic problem. Red Thistle ( Ageratum conyzoides ), also known as ageratum, blue emerald ball, etc., is a plant of the genus ageratum in the family Asteraceae. Thistle originated in South America and was introduced into my country through artificial introduction. It has a large amount of occurrence and serious damage. It is a regional malignant weed. It breeds and spreads in a large number of cultivated land, affecting the growth and development of crops, resulting in reduced production. Thistle is a weed that can produce and release a variety of allelochemicals, and has a heterogeneous effect. Because of its wide ecological adaptability, it often forms single-optimal or co-optimal communities in the invaded areas, inhibiting the growth of other plants,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00C05F15/00
Inventor 向言词李勤奋刘阿梅彭秀花
Owner HUNAN UNIV OF SCI & TECH
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