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Composite herbicide containing fine fenoxaprop, fomesafen and bentazone and its application

A technology of fenoxaprop-ethyl and compound herbicide, which is applied in the field of compound herbicides, can solve the problems of incomplete and effective control of weeds in soybean fields, short time suitable for application, limited herbicidal spectrum, etc., and the speed of reaching is reduced , Improve drug efficacy, broad-spectrum herbicide effect

Active Publication Date: 2015-11-18
河南中天恒信生物化学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual application of acifluorfen, the time for crops to be applied is very short, and it is ineffective against the dominant weeds cocklebur, cocklebur, and pigweed
[0014] At present, herbicides in soybean fields are limited by the safety of crops, and the herbicide spectrum is also limited. Using a herbicide alone can no longer completely and effectively control the occurrence of weeds in soybean fields

Method used

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  • Composite herbicide containing fine fenoxaprop, fomesafen and bentazone and its application
  • Composite herbicide containing fine fenoxaprop, fomesafen and bentazone and its application
  • Composite herbicide containing fine fenoxaprop, fomesafen and bentazone and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: compound herbicide and water emulsion thereof

[0048] 1. Composition (mass percentage): fenoxaprop-ethyl 15%, fomesafen 15%, bentazone 20%, castor oil polyoxyethylene ether 8%, alkylphenol polyoxyethylene ether 10%, Xylene 5%, ethylene glycol 1%, water make up to 100%.

[0049] 2. Preparation method: Mix and stir the mixture obtained from the above components, high-speed shear, and filter to obtain 50% fenoxaprop-ethyl, fomezafen, and bentazone aqueous emulsion with an average particle size of about 4 μm product.

Embodiment 2-4

[0050] Embodiment 2-4: compound herbicide and water emulsion thereof

[0051] Can prepare following composition suspending agent of different content by the similar method of embodiment 1, and concrete prescription sees table 1.

[0052] Table 1: Example 2 - 4 The formula of compound herbicide and water emulsion thereof

[0053]

[0054]

experiment example 1

[0055] Experimental Example 1: Indoor Activity Determination Test

[0056] Utilize the preparation in the example, measure its co-toxicity coefficient to common weed crabgrass in soybean field.

[0057] 1. Experimental grouping: commercially available medicament 18.5% Jinge·Benzazone wettable powder, 48% fomesafen aqueous solution; Examples 1-4; and Example 1 in CN201110368499.8 (publication number is CN102405916A) (named control group 1).

[0058] 2. Experimental method: Soak the tested seeds in warm water at 40°C to accelerate germination, and sow the seeds after the seeds are white. Sow the pretreated crabgrass seeds evenly on the surface of the soil, cover with 0.5cm of soil, move them into the greenhouse for routine cultivation after sowing, and use pot bottom seepage irrigation to make the soil completely moist. Cultivate in the greenhouse for 10 hours, thinn the seedlings and set the plants 10 days after sowing, so that the density of weeds is 20 plants / pot, and spray...

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Abstract

The invention relates to a composite herbicide containing fenoxaprop-p-ethyl, fomesafen and bentazone and application of the composite herbicide. The composite herbicide comprises the following components: the fenoxaprop-p-ethyl, the fomesafen and the bentazone. The fenoxaprop-p-ethyl, fomesafen and bentazone are mixed according to a proper ratio by an inventor on the basis of a large quantity of special researches; the advantages of three effective components are successfully played to the greatest extent; the defect of negative influence on crops, soil alleviation and the like, caused by conventional compound herbicides, can be effectively overcome.

Description

technical field [0001] The invention relates to the field of herbicides, and relates to a compound herbicide containing fenoxaprop-ethyl, fomesafen and bentazone and an application thereof. Background technique [0002] Fenoxaprop-P-ethyl, molecular formula C 13 h 19 NO 2 S, chemical name: ethyl (R)-2-[4-(6-chloro-2-benzoxazolyloxy)phenoxy]propionate. [0003] The refined (R body) of the inactive part (S body) has been removed from the active ingredient of fenoxaprop-p-ethyl. Jing (oxaprop-oxaprop-azole) is a selective, systemic conduction type post-emergence stem and leaf treatment agent. After being absorbed by stems and leaves, the active ingredients are transferred to the leaf base, internode meristems, and root growth points, and are quickly transformed into phenoxy free acids, which inhibit the biosynthesis of fatty acids and damage weed growth points and meristems. Rapidly, stop growing within 2-3 days after application, 5-7 days heart leaves turn green and purple...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/88A01P13/00A01N41/06A01N43/76
Inventor 吴宏博虎彪金莎莎
Owner 河南中天恒信生物化学科技有限公司
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