Compound herbicide of pyrazosulfuron-ethyl, grass amine sulfonamide pentafluoride and cyhalofop butyl

A technology of penoxsulam and pyrazosulfuron-methyl, 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 Weed death rate is fast, the herbicide spectrum is expanded, and the effect of reducing the dosage

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 a practical solution for the current problem that pyrazosulfuron-methyl or penoxsulam or cyhalofop-ethyl is not widely used in the process of controlling weeds in paddy fields and it is difficult to achieve the purpose of effective control. A compound herbicide of pyrazosulfuron-methyl-pentoxsulam-cyhalofop-ethyl

Method used

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  • Compound herbicide of pyrazosulfuron-ethyl, grass amine sulfonamide pentafluoride and cyhalofop butyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Preparation of 40% pyrazosulfuron-methyl-pentoxsulam-cyhalofop-ethyl wettable powder (effective drug mass ratio 1:1:6), selection of wettability additives and fillers. Each component is prepared according to mass percentage: 5% pyrazosulfuron-methyl, 5% penoxsulam, 30% cyhalofop-methyl, appropriate amount of additives and fillers.

[0018] (2) Preparation process: Stir 5g of pyrazosulfuron-methyl, 5g of penoxsulam, 30g of cyhalofop-ethyl and additives, and then fill it with fillers to 100g, and use Tate brand FW80 universal pulverizer Crush it to form 40% pyrazosulfuron-methyl-pentoxsulam-cyhalofop-methyl 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% pyrazosulfuron-methyl penoxsulam-cyhalofop-methyl wettable powder is provided by embodiment 1, effective drug ingredient pyrazosulfuron-methyl 5%, penoxsulam 5% , 30% of cyhalofop-methyl (the mass ratio of active pharmaceutical ingredients is 1:1:6).

[0023] (3) Comparative drugs: 10% pyrazosulfuron-methyl wettable powder (produced by Jiangsu Golden Phoenix Agrochemical Co., Ltd.), 2.5% penoxsulam oil suspension concentrate (produced by...

Embodiment 3

[0029] Field efficacy test results.

[0030] In 2009, in the direct-seeding rice test field of the 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 comparative drugs were sprayed respectively, and the effect investigation was carried out 15 days after the application: 40% pyrazosulfuron-methyl, penoxsulam, cyhalofop-ester wettable powder according to 20g / 667m 2 Spray 40kg of water, the weeding effect is 93.26%; 10% pyrazosulfuron-methyl wettable powder is 20g / 667m 2 Spray 40kg of water, the herbicidal effect is 43.83%; 2.5% penoxsulam oil suspension is 60g / 667m 2 Spray 40kg of water, the herbicidal effect is 65.58%, 10% cyhalofop-ester emulsifiable concentrate is 60g / 667m 2 Spraying 40kg of water has a weeding effect of 48.53%. The compound herbicide has the functions of obvious synergism, fast herbicide speed, wide herbicide spectrum and reduced cost.

[0031] T...

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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: 1pyrazosulfuron-ethyl, 0.75-2 grass amine sulfonamide pentafluoride and 4-7 cyhalofop butyl as well as preparations with different contents and a plurality of preparation formulations; and the compoundherbicide comprises the 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 removing a plurality of broad-leaved weeds and gramineae weeds in a paddy field after compounding the pyrazosulfuron-ethyl, the grass amine sulfonamide pentafluoride and the cyhalofop butyl, has low toxicity and remains, expands a weed removal spectrum, remarkably reduces the dosage, the medicament-applying number and the medicament cost 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, barnyardgrass, and stephenia and other gramineous weeds in paddy fields, and relates to a kind of effective active ingredient of pyrazosulfuron-methyl, penoxsulam and cyhalofen Ester 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 it. High...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/90A01N39/04A01P13/00
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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