Weeding combination for eliminating weed in wheat field

A herbicidal composition and weed technology, applied in the field of pesticide preparations for weed control in farmland, can solve the problems of increasing the use of additives such as adjuvants, solvents and other additives to pollute the environment and increase the cost of use, so as to reduce adverse effects, prolong service life, The effect of reducing the cost of medication

Active Publication Date: 2012-03-14
ANHUI HUATENG AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, two kinds of herbicides, clodinafil and bromoxynil, are used separately in the prevention and control of weeds in wheat fields, and the scope of application has certain limitations; the mixed use of the two kinds of single agents increases the cost of use, and increases the amount of additives, solvents, etc. The use of additives thus causing environmental pollution

Method used

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  • Weeding combination for eliminating weed in wheat field
  • Weeding combination for eliminating weed in wheat field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: The raw materials were weighed according to the following weight percentages: 5% clodinafil, 45% bromoxynil, 3% pull-off powder, 6% naphthalenesulfonate formaldehyde condensate, 15% talcum powder, and the balance kaolin.

[0015] The above-mentioned components were mixed in proportion, ground and pulverized to prepare 50% clodinafil-bromoxynil wettable powder.

Embodiment 2

[0016] Embodiment 2: Take raw materials by weight percentage as follows: clodinafopargyl 4%, bromoxynil 26%, polyarylphenol polyethyl ether phosphate alkyl amine salt 4%, sodium benzoate 0.05%, propylene glycol 8.0%, silicon Magnesium aluminum acid 0.5%, defoamer 1-768 0.1%, the balance water.

[0017] The above-mentioned components were mixed uniformly in proportion, sand-milled and sheared to prepare a 30% clodinafil-bromoxynil suspension concentrate.

Embodiment 3

[0018] Example 3: The raw materials were weighed according to the following percentages by weight: clodinafil 10%, bromoxynil 70%, sodium lignocellulose 10%, sodium lauryl sulfate 5.0%, and diatomaceous earth as the balance. Mix the above-mentioned components uniformly in proportion, emulsify and disperse, and prepare 80% clodinafop-bromoxynil water-dispersible granules.

[0019] Field Application Example 1: The 50% clodinafop-bromoxynil wettable powder prepared in Example 1 was used to prevent and control weeds in wheat fields. The test overview is as follows.

[0020] 1. The test site is Dongfang Group, Chengying Village, Shiqiao Township, Fanshui Town, Baoying County, Yangzhou City, Jiangsu Province.

[0021] 2. Wheat (Huaimai 20) was sown on October 20, 2010, and the previous crop was rice.

[0022] 3. Meteorological and soil data: On the day of application, it was sunny to cloudy, southerly wind 2-3, the highest temperature was 11.8°C, and the lowest temperature ...

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Abstract

The invention relates to a weeding combination for eliminating weeds in a wheat field, which comprises an active ingredient a and an active ingredient b, wherein the active ingredient a is clodinafop-propargyl and the active ingredient b is bromoxynil, bromoxynil octanoate, bromoxynil sodium salt or bromoxynil kali salt. The ratio of weight proportions of the active ingredient a and the active ingredient b is 30:1 to 1:30. The weeding combination can be processed into wettable powder, suspensions and water dispersible granules through a conventional preparation process by adding a proper amount of assistants. The weeding combination has the advantages that the weeds in the wheat field can be effectively eliminated after one time of application, the dosage of pesticide is reduced, the use cost is low and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to a pesticide preparation for controlling weeds in farmland, in particular to a herbicide for controlling annual weeds in wheat fields. Background technique [0002] Clodinafop-propargyl, also known as clodinafop-propargyl, has a chemical name of R-2-[4-(5-chloro-3-fluoro-2-oxypyridine)-phenoxy]-propynoic acid, which belongs to Fluorophenoxycarboxylic acid herbicides with high efficiency and low toxicity are especially effective against vicious grass weeds. It has the characteristics of low temperature resistance, rain erosion resistance, long service life, and safety to wheat and subsequent crops. It is used to prevent and control gramineous weeds in wheat fields, such as sagegrass, wild oats, ryegrass, bluegrass, foxtail, clubhead grass, etc. However, the control effect on broad-leaved weeds in wheat fields is poor. [0003] Bromoxynil (Bromoxnil), the chemical name is 3,5-dibromo-4-hydroxybenzonitrile. Bromoxynil is widely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/40A01N37/40A01P13/00
Inventor 陈佛祥冷忠国朱刚王礼文张志伟蒋全鹏
Owner ANHUI HUATENG AGRI TECH CO LTD
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