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Herbicidal combination for paddy fields

A herbicidal composition, a technology for paddy fields, applied in the directions of herbicides, algaecides, biocides, animal repellents, etc., to achieve the effects of wide herbicidal spectrum, high safety, and prolonging the duration of validity

Inactive Publication Date: 2012-07-11
河南金田地农化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant research on the combination of pyrazosulfuron-methyl and mefenacet in China

Method used

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  • Herbicidal combination for paddy fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Formulation Example 1 ： 11% pyrazosulfuron-fenthiazide (10:1) effervescent agent

[0019] 300 grams of polyethylene glycol 6000, 490 grams of sodium bicarbonate, and 100 grams of citric acid were respectively crushed and passed through an 80-mesh sieve, and then mixed with crushed 100 grams of pyrazosulfuron-methyl and 10 grams of mefenamide , after being granulated and dried, compressed into 1g tablets to obtain 11% fensulfuron-fenthiazide effervescent agent.

Embodiment 2

[0020] Formulation Example 2 ： 2% pyrazosulfuron-fenthiazide (1:1) granules

[0021] Mix 10 grams of pyrazosulfuron-methyl, 10 grams of mefenacet, and 10 grams of polyvinyl alcohol, then air-flow pulverize them, and then use high-pressure powder spraying to evenly spray them on 970 grams of clay particles weighed, and then spray Add a small amount of water, stir well, and then dry. That is, 2% pyrazosulfuron-fenthiazide granules were obtained.

Embodiment 3

[0022] Formulation Example 3 ： 15% pyrazosulfuron-fenthiazide (1:2) granules

[0023] Stir 50 grams of pyrazosulfuron-methyl, 100 grams of mefenamide, 50 grams of sodium lignosulfonate, 50 grams of naphthalenesulfonate formaldehyde condensate, 100 grams of white carbon black and 650 grams of kaolin, and use mechanical pulverization Mix evenly after processing to obtain 15% fensulfuron-fenthiazide microgranules.

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Abstract

The invention relates to a herbicidal combination for paddy fields. The active ingredients of the herbicidal combination are imazosulfuron and mefenacet, the weight ratio of which is 10:1 to 0.5:100; and adjuvant, solvent and carrier can be added into the active ingredients to prepare any agriculturally applicable dosage form. The mixed combination is highly safe for paddy rice, can effectively decrease the dosage of the active ingredients per mu, broaden the weed control spectrum of each single agent and effectively control barnyard grass, Asian sprangletop and annual and perennial broadleaf weeds, such as hairgrass, oldworld arrowhead, water plantain, pondweed, cress, common bulrush, glomerate galingale herb, marsh horsetail herb, difformed galingale, flat sedge, fice flat sedge and perennial sedge, and in particular, the herbicidal combination has special effect on oldworld arrowhead which is worst weed.

Description

technical field [0001] The invention belongs to the technical field of pesticide herbicides, and in particular relates to a paddy field herbicidal composition containing pyrazosulfuron-methyl and mefenacet. Background technique [0002] Imazosulfulon, a sulfonylurea herbicide and an acetolactate synthase inhibitor, is absorbed through the roots of the plant and then delivered to the entire plant, inhibiting the growth of weed terminal buds, preventing the growth and development of roots and seedlings, resulting in the death of the whole plant. It is mainly used to control annual and perennial broad-leaved weeds and Cyperaceae weeds, such as cow felt, Arthia sativa, Alisma, spinach, cress, wild water chestnut, water sedge, etc. [0003] Mefenacet, an amide herbicide, can be absorbed by the young shoots of weeds, is a cell growth and division inhibitor, and has a strong inhibitory effect on the division of mother cells. The agent hinders the growth of barnyardgrass until dea...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/78A01P13/00
Inventor 李晓红王保香赵彦超徐永强王战清谢瑞英
Owner 河南金田地农化有限责任公司
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