Weeding composition with oxaziclomefone and mefenacet
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A technology of mefenacet and herbicidal composition, which is applied in the field of compound pesticides, can solve the problem of compounding of oxaziculone and mefenacet that has not yet been found, and achieve the expansion of weed control spectrum and reasonable components , good effect on crop safety
Active Publication Date: 2015-10-21
SHAANXI SUNGER ROAD BIO SCI
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Embodiment 1
[0040] Weigh 10% oxaziclozone, 20% mefenamide, 1.5% TERSPERSE 2500 (produced by Huntsman, USA), 2% T polyoxyethylene polyoxypropylene ether block copolymer, 1% carboxymethyl Base cellulose, 0.2% xanthan gum, 5% ethylene glycol, 0.5% formaldehyde, 0.5% butanol, and deionized water are added to 100% by weight. The above raw materials were mixed, dispersed at high speed for 30 minutes, and sanded with a sand mill to prepare a 30% oxaziclozone·fenthiazide suspension concentrate.
Embodiment 2
[0042] Weigh 20% oxaziclozone, 15% mefenacet, 2% alkylphenol formaldehyde resin polyoxyethylene ether, 3% TERSPERSE 2020 (produced by Huntsman, USA), 0.2% magnesium aluminum silicate, 5 % propylene glycol, 0.5% benzoic acid, 0.5% silicone defoamer (trade name: s-29 produced by Nanjing Sixin Applied Chemicals Company), and deionized water to 100% by weight. The above raw materials were mixed, dispersed at high speed for 30 minutes, and sanded with a sand mill to prepare a 35% oxaziclozone·fenthiazide suspension concentrate.
Embodiment 3
[0044] Weigh 25% oxaziclozone, 15% mefenamide, 2% sodium alkylnaphthalene sulfonate, 3% TERSPERSE 2020 (produced by Huntsman, USA), 0.2% xanthan gum, 5% polyethylene glycol Alcohol, 0.5% sodium benzoate, 0.5% octanol, and deionized water are added to 100% by weight. The above-mentioned raw materials were mixed, dispersed at high speed for 30 minutes, and sanded with a sand mill to prepare a 40% oxaziclozone·fenthiazide suspension concentrate.
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Abstract
The invention discloses a paddy field weeding composition with oxaziclomefone and mefenacet and the application of the paddy field weeding composition. The paddy field weeding composition is composed of the first active component oxaziclomefone, the second active component mefenacet and auxiliaries. The weight ratio of the first active component to the second active component is (0.1-100):(10-120). The composition can be prepared into suspending agents, dispersible oil suspending agents, wettable powder, water dispersible granules and granula allowed agriculturally. The composition is reasonable in component, good in weeding effect and low in pesticide use cost, the activity and the weeding effect of the composition are not simply adding the activities of all the components, and compared with an existing single preparation, the composition has the remarkable weeding effect, besides, the remarkable synergistic effect is achieved, resistance is delayed, good safety is achieved, and the composition meets the requirement for the safety of pesticide preparations. The composition is used for preemergence weed closing treatment and post-emergence weed early-stage treatment of transplanting fields and direct seeding fields, and has high weeding activity on the weeds of paddy fields.
Description
technical field [0001] The invention relates to a paddy field herbicidal composition, which is composed of active ingredients oxaziclozone, mefenacet and auxiliaries, and belongs to the technical field of compound pesticides. Background technique [0002] Oxaziclomefone, also known as Qubai'an, English name oxaziclomefone, chemical name 3-[1-(3.,5-dichlorophenyl)-1-methylethyl]-2,3-dihydro-6 -Methyl-5-phenyl-4H-1,3-oxazin-4-one. Belonging to organic heterocycles, it is a systemic herbicide for paddy fields, mainly absorbed by the roots and stems and leaves of weeds. After the weeds are exposed to the pesticide, the stems and leaves will turn green, stop growing, and die. It is suitable for long spraying period, long-lasting effect, high safety for rice selection, and control of barnyardgrass, daughter, chickweed, special-shaped sedge and other weeds. [0003] Mefenacet, also known as cyclohexamide, English name mefenacet, chemical name: 2-benzothiazol-2-yloxy-N-methylacet...
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