Mixed herbicide containing bentazone, nicosulfuron and atrazine and application thereof

A technology of nicosulfuron and atrazine, applied in the direction of herbicides and algicides, applications, biocides, etc., can solve the problem of incomplete and effective control of weeds in cornfields, current season crops or subsequent crop residue toxicity , long-lasting effect in the field, etc., to achieve the effects of delaying weed resistance, improving drug efficacy, and broad weeding spectrum

Active Publication Date: 2013-12-25
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Although nicosulfuron can effectively control annual and perennial gramineous weeds such as crabgrass, foxtail, beef tendon, barnyardgrass, wild oats, etc. Some broad-leaved weeds such as hemp, cocklebur, and purslane are also better against Cyperaceae such as Cyperus, but basically ineffective against Bermudagrass and Popona
Moreover, due to the long-term use of sulfonylurea herbicides in corn fields, many weeds have developed resistance
[0012] 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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  • Mixed herbicide containing bentazone, nicosulfuron and atrazine and application thereof
  • Mixed herbicide containing bentazone, nicosulfuron and atrazine and application thereof
  • Mixed herbicide containing bentazone, nicosulfuron and atrazine and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Benazone 10%, Atrazine 28%, Nicosulfuron 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

[0028] Benazone 9%, Atrazine 15%, Nicosulfuron 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

[0030] Benazone 40%, Atrazine 33%, Nicosulfuron 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 formulated.

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Abstract

The invention belongs to the field of herbicides and relates to a mixed herbicide containing bentazone, nicosulfuron and atrazine and application thereof. The herbicide takes bentazone, nicosulfuron and atrazine as main active ingredients, wherein the mass ratio of bentazone to nicosulfuron to atrazine is (0.1-80):(0.1-80):(0.1-80) and the bentazone, nicosulfuron and atrazine account for 1-85wt% of the herbicide. The mixed herbicide has an obvious effect on postemergence weed control in corn fields, especially on controlling various grass and broadleaf weeds in the corn fields. Compared with the single agent, the herbicide delays weed resistance, has wide herbicidal spectrum and long efficacy duration and does no harm to the corns and the aftercrops on the premise of improving the pesticide effect.

Description

technical field [0001] The invention belongs to the field of herbicides, and relates to a mixed herbicide containing bentazone, nicosulfuron 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 thing, 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 ingr...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A01N47/36A01N43/88A01N43/70A01P13/00
Inventor齐武刘奎涛夏向荣陈文明顾起财
OwnerNANJING HUAZHOU PHARMA