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Paraquat and hexazinone weeding composition and application thereof

A herbicidal composition and technology of paraquat dichloride, applied in the field of pesticides, can solve the problems of paraquat single-agent resistance and paraquat water-based toxicity, so as to improve safety, reduce usage, and alleviate resistance Effect

Inactive Publication Date: 2013-04-24
NANJING GAOZHENG AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a safer and better herbicidal composition against paraquat aqueous solution, which is highly toxic, easy to be taken by mistake, and weeds are resistant to paraquat single agent.

Method used

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  • Paraquat and hexazinone weeding composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 5 kg of paraquat dichloride salt, 20 kg of hexazinone technical substance, add 5 kg of alkylamide polyoxyethylene ether used as a dispersant, and 4 kg of ethylene oxide and propylene oxide copolymerized as a wetting agent The remaining amount was made up to 100 kg with kaolin, and the above mixture was ultrafinely pulverized in a jet mill to obtain a wettable powder of a herbicidal composition of paraquat and hexazinone with an active ingredient content of 25%.

Embodiment 2

[0030] Get 10 kilograms of paraquat dichloride salt, 30 kilograms of hexazinone technical substance, add 5 kilograms of sodium octyl naphthalene sulfonate used as a dispersant, and 5 kilograms of ethylene oxide propylene oxide copolymer used as a wetting agent , the balance was replenished to 100 kg with anhydrous sodium sulfate, and the above mixture was ultrafinely pulverized in a jet mill to obtain a soluble powder of a herbicidal composition of paraquat and hexazinone with an active ingredient content of 40%.

Embodiment 3

[0032] Get 15 kg of paraquat dichloride salt, 45 kg of hexazinone original drug, add 5 kg of alkylamide polyoxyethylene ether used as a dispersant, and 5 kg of ethylene oxide and propylene oxide copolymerized as a wetting agent 2 kg of sodium alginate used as a disintegrant, 2 kg of xanthan gum used as a binder, and the balance made up to 100 kg with pottery clay, after mixing the above mixture evenly, add an appropriate amount of water to granulate and dry Finally, a water-dispersible granule of a herbicidal composition of paraquat and hexazinone with an active ingredient content of 60% was obtained.

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Abstract

The invention relates to a paraquat and hexazinone weeding composition and an application thereof, and belongs to the field of pesticide. The weeding composition consists of paraquat and hexazinone, wherein the mass ratio of paraquat to hexazinone is (1-30):(20-60). According to the weeding composition, paraquat and hexazinone within a specific proportioning range are compounded, so that the resistance of partial weeds to paraquat is reduced, and remarkable synergism effect after compounding is achieved. According to the weeding composition, the use amount of paraquat is reduced, and by adopting non-water formulations such as soluble powder, wettable powder and water dispersing granule, the security in dosage is greatly improved. The weeding composition provided by the invention can be applied to no-tillage land weeding in bare places, frosts, fruit gardens and lands for dry crops such as soybean, wheat, rape and corn, or weeding in line intervals of corn and sugarcane seedlings. The invention further provides a preparation method of the wettable powder, the soluble powder, the water dispersing granule and suspension of the paraquat and hexazinone weeding composition.

Description

technical field [0001] The invention belongs to the field of pesticides, and relates to a herbicidal composition of paraquat and hexazinone and an application thereof. Background technique [0002] Paraquat, also known as Kewuxong, Caokuling, and Paraquat, is an organic heterocyclic contact-type, non-selective killing agent. Paraquat acts by inhibiting plant photosynthesis, and the effect is rapid. The affected tissue changes color within 2-3 hours after application, the weeds wither within 24 hours, and the weeds wither within 1-2 days; it has contact and certain systemic effects, and is resistant to rainwater. Drenching (raining half an hour after the medicine will not affect the efficacy of the medicine), high temperature and strong light can accelerate the death of weeds; it has a strong destructive effect on the green tissues of monocotyledonous and dicotyledonous plants; the medicine has no conduction effect and cannot penetrate The suberized bark is easily absorbed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/64A01N43/40A01P13/00
Inventor 汪茂勤汪莘杰
Owner NANJING GAOZHENG AGROCHEM
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