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A method for controlling the spread of Achnatherum splendens

A method of mowing Achnatherum splendens and grass, which is applied in the field of harmful plant control, and can solve problems such as difficulty in controlling the depth of overturning and destructive grasslands, and achieve the effects of increasing the control effect, reducing ecological pressure, and reducing the amount of drugs used

Active Publication Date: 2021-03-09
QINGDAO AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If mechanical removal is used, it is not only difficult to control the depth of removal, but also more destructive to the grassland

Method used

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  • A method for controlling the spread of Achnatherum splendens

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (a) Selection of spraying period: select the late stage of plant stubble;

[0031] (b) Herbicide selection: the effective ingredient ratio of sethenoxydim and quizalofop-p-ethyl is 112.5:31.6 g / hm 2 Configured as a mixed solution;

[0032] (c) Selection of environmental conditions: Apply pesticides in the evening to ensure that there is no strong wind or strong light when spraying, and no precipitation for 12 hours before and after spraying.

[0033] (d) Pesticide application: use the stem and leaf spray method, according to the amount of water 30kg / 667m 2 The standard prepared medicinal solution, spray the stems and leaves evenly with a 2 L quantitative sprayer.

[0034] On the basis of the above scheme, the traditional 30-day fresh weight control effect was used to evaluate the control effect. The effects of the present invention can be further reflected by the data in Table 1.

[0035] Table 1 Fresh weight control effect of Achnatherum splendens after being stubb...

Embodiment 2

[0038] (a) Selection of spraying period: select the late stage of plant stubble;

[0039] (b) Herbicide selection: the active ingredient ratio of sethenoxydim and quizalofop-p-ethyl was 56.25:31.6 g / hm 2 Configured as a mixed solution;

[0040] (c) Selection of environmental conditions: Apply pesticides in the evening to ensure that there is no strong wind or strong light when spraying, and no precipitation for 12 hours before and after spraying.

[0041] (d) Pesticide application: use the stem and leaf spray method, according to the amount of water 30kg / 667m 2 The standard prepared medicinal solution, spray the stems and leaves evenly with a 2 L quantitative sprayer.

[0042] On the basis of the above scheme, the traditional 30-day fresh weight control effect was used to evaluate the control effect. The effects of the present invention can be further reflected by the data in Table 1.

[0043] From the above data, it can be seen that by the method of the present invention,...

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Abstract

The invention discloses a method for controlling the spread of Achnatherum splendens. The method is safe and efficient and can be used as a chemical control method for controlling Achnatherum splendens. The invention utilizes the difference in sensitivity of different grassland plants to sethenoxydim and quizalofop-p-p, Combined with the application of pesticides during the greening stage or the late stage of adult plant stubble, the spraying concentration and compatibility ratio that have significant control effects on Achnatherum splendens and have little effect on the growth and development of other grassland plants around it are selected. The present invention finds that the spraying active ingredient ratio is 112.5: 31.6g / hm 2 The sethenoxydim and quizalofop-ethyl have significant control effects on Achnatherum splendens, and the control effect on fresh weight at 30 days is 97.97%.

Description

technical field [0001] The invention relates to the field of harmful plant control, in particular to a method for controlling the spread of Achnatherum splendens. Background technique [0002] Achnatherum splendens T. is a perennial grass, which is widely distributed in Inner Mongolia, Xinjiang, Qinghai-Tibet Plateau and Hebei in my country. Achnatherum splendens is a good forage grass for livestock when it is young; after many years of growth, the stems and leaves are rough and tough, the quality is not high, and it is difficult for livestock to feed. Therefore, the old Achnatherum splendens beach has become an important area for natural grassland improvement. At present, the occurrence area of ​​Achnatherum splendens is still expanding, seriously endangering the ecological balance of the grassland. [0003] Achnatherum splendens has the characteristics of high seed yield, high reproduction coefficient, tall plants, strong root system and continuous distribution, so manua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00A01G7/06A01N43/60A01N35/10A01P13/00
CPCA01G7/06A01N35/10A01N43/60A01G22/00
Inventor 孙娟胡警匀李炼栗振义董书伟
Owner QINGDAO AGRI UNIV
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