A kind of mixed herbicide containing bentazone, mesotrione and atrazine and its application

A technology of mesotrione and herbicide, applied in the field of mixed herbicide of mesotrione and atrazine, containing bentazone, which can solve the problem of incomplete and effective control of weeds in cornfields, current crops or after-season crops To deal with problems such as crop residue toxicity and promotion and use restrictions, so as to delay weed resistance, improve drug efficacy, and improve control effect

Inactive Publication Date: 2011-12-07
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mesotrione has limited control effect on grass weeds such as crabgrass, and is expensive, and the cost per unit area is high, which limits its popularization and use
[0011] At present, herbicides in cornfields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in cornfields. Too long effective period, excessive dosage or uneven application will easily cause residual toxicity to current crops or subsequent crops

Method used

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  • A kind of mixed herbicide containing bentazone, mesotrione and atrazine and its application
  • A kind of mixed herbicide containing bentazone, mesotrione and atrazine and its application
  • A kind of mixed herbicide containing bentazone, mesotrione and atrazine and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Benazone 10%, Atrazine 28%, Mesotrione 2%, Alkylphenol Polyoxyethylene Ether 4%, Polyoxyethylene Polyoxypropylene Block Compound 5%, Xanthan Gum 2%, Vegetable Oil Supplement 100%, according to the routine preparation method, be mixed with the oil suspension concentrate that active ingredient mass percent content is 40%.

Embodiment 2

[0027] Benazone 10%, Atrazine 14%, Mesotrione 1%, Calcium Dodecyl Benzene Sulfonate 9%, Alkylphenol Polyoxyethylene Ether 5%, Xylene to 100%, according to conventional preparations Methods The emulsifiable concentrate with 25% mass percent of active ingredients was prepared.

Embodiment 3

[0029] Benazone 40%, Atrazine 33%, Mesotrione 2%, Sodium Lignosulfonate 7%, Sodium Dodecyl Benzene Sulfonate 5%, Ammonium Sulfate 5%, Diatomaceous Earth Supplement 100%, According to the conventional preparation method, the water-dispersible granules with an active ingredient mass percent content of 75% are prepared.

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Abstract

The invention belongs to the field of herbicides, and relates to a mixed herbicide containing bentazone, mesotrione and atrazine and an application thereof. The herbicide uses bentazone, mesotrione and atrazine as the main active ingredients, and the mass ratio of bentazone, mesotrione and atrazine is 0.1-80:0.1-80:0.1-80, three The mass percent content in the herbicide is 1-85%. The application of the mixed herbicide of the present invention in post-emergence weeding of corn fields, especially in the application of controlling various gramineous and broad-leaved weeds in corn fields has remarkable effects. Compared with a single agent, the herbicide of the present invention delays weed resistance, has a wide weeding spectrum, long duration of action and is safe to corn and subsequent crops on the premise of improving the efficacy of a single agent.

Description

technical field [0001] The invention belongs to the field of herbicides, and relates to a mixed herbicide containing bentazone, mesotrione and atrazine and an application thereof. technical background [0002] Benazone, also known as paicaodan, bentazon, chemical name: 3-isopropyl-(1H)-benzo-2,1,3-thiadiazin-4-one-2,2-dioxide substance, the structural formula is: [0003] [0004] The herbicide is a contact-type selective post-emergence herbicide, which is used for the treatment of stems and leaves at the seedling stage, and works through leaf contact. When used in dry fields, it first penetrates into the chloroplast through the leaf surface to inhibit photosynthesis. The use of paddy fields can not only penetrate through the leaves but also absorb through the roots, and then transmit to the stems and leaves, which strongly hinders the photosynthesis and water metabolism of weeds, causes nutrient starvation, and causes physiological dysfunction and death. The active in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/88A01N41/10A01N43/70A01P13/00
Inventor 齐武彭永强郭崇友陈金福
Owner NANJING HUAZHOU PHARMA
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