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A kind of herbicidal composition containing pyrizamid and mefenacet

A technology of mefeniazide and herbicidal composition, which is applied in the field of compound pesticides, can solve the problem of undiscovered combination of pyrizamid and mefenacet, achieve the expansion of weed control spectrum, reduce the cost of control, Good effect on crop safety

Active Publication Date: 2017-05-10
SHAANXI SUNGER ROAD BIO SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the literature search, there is no relevant report on the compounding of pyrizachlor and mefenacet

Method used

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  • A kind of herbicidal composition containing pyrizamid and mefenacet
  • A kind of herbicidal composition containing pyrizamid and mefenacet
  • A kind of herbicidal composition containing pyrizamid and mefenacet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh 10% pyrifluzal, 10% mefenamide, 2% Nongru 2201, 2% sodium lignosulfonate, 2% sodium alkylsulfonate, 2% glycerin, 3% bentonite, 0.4% octanol , 1% propylene glycol, 1% epichlorohydrin, and deionized water are added to 100% by weight. After the above raw materials are mixed, they are subjected to high-speed shearing and sand grinding in a desert sand mill to form a highly dispersed and stable suspension system in the water dispersion system to obtain a 20% pyriflufen-fenthiazide aqueous suspension concentrate.

Embodiment 2

[0042] Weigh 2% pyriflumechlor, 20% mefenamide, 2% emulsifier T-60, 2% sodium alkylnaphthalene sulfonate, 1% sodium naphthalene sulfonate, 2% propylene glycol, 3% polyvinyl alcohol, 0.3% butanol, 1% glucose, 1% epichlorohydrin, and deionized water are added to 100% by weight. After the above raw materials are mixed, they are subjected to high-speed shearing and sand grinding in a desert sand mill to form a highly dispersed and stable suspension system in the water dispersion system to obtain a 22% pyriflufen-fenthiazide aqueous suspension concentrate.

Embodiment 3

[0044] Weigh 25% pyrifluzal, 10% mefenamide, 2% Nongru 2201, 2% sodium polycarboxylate, 1% sodium alkyl sulfate, 2% propylene glycol, 4% polyvinyl alcohol, 0.3% hexanol , 1% sucrose, 1% triphenyl phosphite, deionized water added to 100% by weight. After the above raw materials are mixed, they are subjected to high-speed shearing and sand grinding in a desert sand mill to form a highly dispersed and stable suspension system in the water dispersion system to obtain a 35% pyriflufen-fenthiazide aqueous suspension concentrate.

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Abstract

The present invention discloses a rice field weeding composition containing pyriminobac-methyl and mefenacet, and applications thereof, wherein the composition comprises a first active component pyriminobac-methyl, a second active component mefenacet and an auxiliary agent, and a weight ratio of the first active component to the second active component is 0.5-40:10-100. According to the present invention, the composition can be prepared into agriculturally-acceptable water suspensions, dispersible oil suspensions, wettable powders, water dispersible granules and granules; the composition has characteristics of reasonable components, good weeding effect, and low medication cost; the activity and the weeding effect of the composition are not the simple superposition, and compared with the existing single agent, the composition has characteristics of significant weeding effect, significant synergy effect, resistance delaying and good safety, and meets the safety requirements of the pesticide preparations; and the composition can be used for transplanting fields or direct seeding fields, can be used for preventing and removing Echinochloa crusgalli, Semen euphorbiae, broadleaf weeds and sedges, and can be used for weed germinating-stage treatment or post-emergent early-stage treatment.

Description

technical field [0001] The invention relates to a paddy field herbicidal composition, which is composed of active ingredients pyrizamid, mefenamide and auxiliary agents, and belongs to the technical field of compound pesticides. Background technique [0002] pyriminobac-methyl, English name pyriminobac-methyl, chemical name: 2-[(4,6-dimethoxypyrimidin-2-yl)oxy]-6-[1-(N-methoxyimino)ethyl Base] methyl benzoate, a systemic conduction herbicide, used in direct rice fields or transplanted fields, can control barnyardgrass before the 3-leaf stage, and is effective for broad-leaved weeds and sedges. It can be treated with toxic soil and stem and leaf spray, which is extremely safe for rice. [0003] Mefenacet, also known as cyclohexamide, English name mefenacet, chemical name: 2-benzothiazol-2-yloxy-N-methylacetanilide. It is a selective systemic conduction herbicide, which is mainly absorbed through the bud sheath and root, and then transmitted to the young shoots and young lea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/78A01P13/00A01N43/54
Inventor 冯建雄张仙马强
Owner SHAANXI SUNGER ROAD BIO SCI