Compound herbicide of carfentrazone, cyhalofop butyl and bichlorid quinolinic acid

A technology of quinclorac and cyhalofop-ethyl, which is applied in the direction of herbicides, algicides, biocides, biocides, etc., can solve problems such as difficult to achieve effective control and not wide herbicidal spectrum, and achieve miscellaneous The effect of fast grass death speed, expansion of weed killing spectrum and slow speed

Inactive Publication Date: 2010-03-10
徐宝玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide an azole weed control method for the current problem that the herbicidal spectrum is not wide in the process of controlling weeds in paddy fields using mefentrazone, cyhalofop-ethyl or quinclorac alone, and it is difficult to achieve the purpose of effective control. A compound herbicide of oxazone, cyhalofop-ethyl, and quinclorac

Method used

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  • Compound herbicide of carfentrazone, cyhalofop butyl and bichlorid quinolinic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Preparation of 40% mefentrazone·cyhalofop-ethyl·quinclorac wettable powder (mass ratio of effective drug 1:3.75:15.125), selection of wettability auxiliaries and fillers. Each component is prepared according to mass percentage: 2.01% of mefentrazone, 7.55% of cyhalofop-ethyl, 30.44% of quinclorac, and appropriate amount of additives and fillers.

[0018] (2) Preparation process: Stir 2.01g of mefentrazone, 7.55g of cyhalofop-ethyl, 30.44g of quinclorac and additives, and then fill it with fillers to 100g, and use a Tate brand FW80 universal pulverizer Mechanical pulverization, 40% mefentrazone·cyhalofop-ethyl·quinclorac wettable powder.

Embodiment 2

[0020] Synergistic Bioassay:

[0021] (1) Weeds for the test: For the direct-seeding paddy field of Jianhu County Agricultural Science Institute (no soil sealing herbicide was used after sowing), the field area where monocotyledonous and dicotyledonous weeds occur more uniformly and uniformly was selected, and 5 plots were divided. The area of ​​each plot is 8m 2 , 2m in each plot before medication 2 , and treat the number of monocotyledonous and dicotyledonous weeds in the designated point to be roughly equal.

[0022] (2) Tested drug: 40% mefentrazone · cyhalofop-ethyl · quinclorac wettable powder is provided by embodiment 1, effective drug composition mefentrazone 2.01%, cyhalofop-ethyl 7.55%, quinclorac Acid 30.44% (mass ratio of active pharmaceutical ingredients is 1:3.75:15.125).

[0023] (3) Comparative drug: 40% mefentrazone water-dispersible granule (produced by FMC Company of the United States, repackaged by Suzhou Fumeishi Plant Protection Agent Co., Ltd.), 10% c...

Embodiment 3

[0029] Field efficacy test results.

[0030] In 2009, in the direct-seeding rice test field of Jianhu County Agricultural Science Institute, on July 2, 20 days after the rice seeds were sown, weeds generally emerged, and the above-mentioned test drugs and comparison drugs were sprayed respectively, and the effect investigation was carried out 15 days after the application: 40% fentrazone·cyhalofop-ethyl·quinclorac wettable powder according to 80g / 667m 2 Spray 40kg of water, the herbicidal effect is 92.56%; 2 Spray 40kg of water, its weed control effect is 59.76%; 2 Spray 40kg of water, its weeding effect is 48.13%; 50% quinclorac wettable powder according to 50g / 667m 2 Spraying 40kg of water has a weeding effect of 45.85%. The compound herbicide has the functions of obvious synergism, fast herbicide speed, wide herbicide spectrum and reduced cost.

[0031] The above-mentioned examples are not specific limitations on the present invention. In practice, the mass ratio of the...

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Abstract

The invention belongs to a herbicide for removing monogenus or dicotyledonous weeds in a paddy field, in particular to a compound herbicide with effective active components in percentage by weight: 1carfentrazone, 2-4 cyhalofop butyl and 10-20 bichlorid quinolinic acid as well as preparations with different contents and a plurality of preparation formulations; and the compound herbicide comprisesthe effective active components, a wetting additive, a filler, and the like. The invention obviously improves the effect, increases a weed control speed, obtains the effect of preventing and removinga plurality of broad-leaved weeds and gramineae weeds in a paddy field after compounding the carfentrazone, the cyhalofop butyl and the bichlorid quinolinic acid, has low toxicity and remains, expands a weed removal spectrum and is beneficial to delaying the succession speed of weed communities and prolonging the service life of the herbicide.

Description

Technical field: [0001] The invention belongs to a chemical herbicide for controlling various broad-leaved weeds in paddy fields and gramineous weeds such as barnyardgrass and stephab, and relates to a chemical herbicide whose effective active ingredients are mefentrazone, cyhalofop-ethyl and quinclorac Compound herbicides. Background technique: [0002] The use of chemical herbicides is one of the main measures for farmers to reduce labor intensity, effectively control weed damage in farmland, and obtain high yields of crops. For a long time to come, it is inevitable to use chemical herbicides to control field weeds , reduce labor intensity and increase crop yield. [0003] In order to protect food safety, protect the environment, and protect human health, the research and development and application of chemical herbicides are developing in the direction of high efficiency, low toxicity, and low residue. Scientific researchers at all levels have made fruitful efforts for i...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N39/04A01N43/42A01P13/00
Inventor 徐宝玉王东明刘学进刘琴潘宁徐加健
Owner 徐宝玉
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