Weeding composition used for preventing and eliminating annual weeds in paddy field

A herbicidal composition and paddy field technology, applied in the pesticide herbicidal composition and its application fields, can solve the problems of weeds in paddy fields that are prone to produce drug resistance and control effects, and achieve reduced resistance risk, good environmental compatibility, and reduced The effect of cost of use

Active Publication Date: 2014-08-13
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems in the prior art that when a single pesticide is used alone, it is easy to produce resistance to weeds in paddy fields an

Method used

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  • Weeding composition used for preventing and eliminating annual weeds in paddy field
  • Weeding composition used for preventing and eliminating annual weeds in paddy field
  • Weeding composition used for preventing and eliminating annual weeds in paddy field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: 70% propargyl oxadiazone·pretilachlor·cyprosulfuron water-dispersible granules.

[0042] Propyryl oxadiazone 15%, pretilachlor 50%, cyprosulfuron 5%, sodium butylnaphthalene sulfonate 5%, alkylphenol polyoxyethylene ether sulfate 8%, urea 2%, kaolin supplement 100 %. Mix the above-mentioned active ingredients, dispersant, wetting agent, disintegrant and solid carrier evenly, pulverize with an ultrafine jet mill, knead, and then add to a fluidized bed granulation dryer for granulation, drying, and sieving. 70% propargyl oxadiazone · pretilachlor · cyprosulfuron water dispersible granules can be obtained.

Embodiment 2

[0043] Example 2: 80% propargyloxadiazone·pretilachlor·cyprosulfuron wettable powder.

[0044] Propyryl oxadiazone 20%, pretilachlor 50%, cyprosulfuron 10%, sodium lauryl sulfate 5%, naphthalenesulfonate formaldehyde condensate 5%, diatomaceous earth supplement 100%. Mix the above-mentioned active ingredients, dispersant, wetting agent and solid carrier, mechanically pulverize, then airflow pulverize, and mix evenly to obtain 80% propargyl oxadiazone·pretilachlor·cyprosulfuron-methyl wettability powder.

Embodiment 3

[0045] Example 3: 30% propargyl oxadiazone·pretilachlor·cyprosulfuron oil suspension concentrate.

[0046] Propyryl oxadiazone 4%, pretilachlor 25%, cyprosulfuron 1%, alkylphenol polyoxyethylene ether 10%, sodium dodecylbenzene sulfonate 10%, polyvinyl acetate 2%, Refined soybean oil makes up 100%. After the above-mentioned active ingredients and additives are dispersed by high-speed shearing and sand-milled in a sand mill, a highly dispersed and stable suspension system is formed in a non-aqueous medium, and 30% propargyl oxadiazone·propipazone can be prepared Amine Cyprosulfuron-methyl oil suspension.

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PUM

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Abstract

The invention discloses a weeding composition used for preventing and eliminating annual weeds in a paddy field. The weeding composition comprises the following effective components: oxadiargyl, pretilachlor and cyclosulfamuron, wherein a weight ratio of oxadiargyl to pretilachlor to cyclosulfamuron is 1-50: 1-80: 1-40, and the total weight percentage content of oxadiargyl, pretilachlor and cyclosulfamuron in the composition is 0.1 to 85%. The composition exerts obviously better effects in preventing and eliminating annual weeds in the paddy field compared with separately used effective components of the composition, has a broadened weed control spectrum, reduces drug dose, delays generation of drug resistance of weeds and mitigates pollution to the environment.

Description

technical field [0001] The invention relates to a pesticide herbicidal composition and its application field, in particular to a ternary compound with oxadiazone propargyl, pretilachlor and cyprosulfuron-methyl as active ingredients, which is applied to control annual weeds in paddy fields. Background technique [0002] Chemical weeding is one of the main means to control farmland weeds in agricultural production. In recent years, due to the large-scale single use of some herbicide varieties, many weeds have developed resistance. Simultaneously, because weeds occur when the grass phase is complex and there are many types, the use of a single species can no longer effectively solve the damage caused by weeds in farmland, and all will show a certain aspect of defects. The mixed use of different types of herbicides has many advantages such as broad weeding spectrum, improved control effect, delay of weed resistance, saving time and labor. [0003] Oxadiargyl: Oxadiazolone her...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01P13/00A01N37/22A01N43/824
Inventor 张志伟王礼文朱刚陈佛祥吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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