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Herbicide composition

A composition and herbicide technology, applied in the directions of herbicides and algaecides, biocides, biocides, etc., can solve the problem of resistance, increased usage, unsatisfactory broad-leaved weed control, and grasses. Weed control effect is poor and other problems, to achieve the effect of reducing control cost, expanding weed control spectrum, and reducing the number of spraying times

Inactive Publication Date: 2009-09-16
SHAANXI SUNGER ROAD BIO SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In actual use, nicosulfuron has a good control effect on most grass weeds in the corn field, but the control effect on some broad-leaved weeds is not ideal, and the weeds in the corn field are resistant to nicosulfuron. There is a trend of increasing resistance; atrazine, as a commonly used cornfield herbicide, has a good control and sealing effect on weeds, but due to the problem of resistance, the amount of use is increasing year by year; Broad-leaved weeds in corn field have good control effect, but poor control effect on gramineous weeds

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] Weigh 2% nicosulfuron, 23% atrazine, 10% fluroxypyr, 3% TERSPERSE2700 (polycarboxylate, produced by Huntsman, U.S.), 2% diffusing agent NNO (alkylnaphthalene sulfonate) salt formaldehyde condensate), 3% pull open powder BX (sodium dibutylnaphthalene sulfonate), 2% K-12 (sodium dodecyl sulfate), 3% white carbon black, 5% ammonium sulfate, diatom Soil is added to 100% by weight. 35% nicosulfuron-atrazine-fluroxypyr water-dispersible granules were prepared by the conventional method for preparing water-dispersible granules from the above-mentioned raw materials, ie, mixing, ultrafine airflow pulverization, mixing, and granulation.

[0019] In this embodiment, the weight ratio of nicosulfuron, atrazine and fluroxyfen can vary from 1 to 50:1 to 80:1 to 50, and the total weight composition of the two is still 35%, forming new embodiment.

Embodiment 2

[0021] Weigh 3% nicosulfuron, 32% atrazine, 15% fluroxypyr, 5% TERSPERSE2700 (polycarboxylate, produced by Huntsman, U.S.), 3% diffusing agent NNO (alkylnaphthalene sulfonate) salt formaldehyde condensate), 4% pull open powder BX (sodium dibutyl naphthalene sulfonate), 4% K-12 (sodium dodecyl sulfate), 3% white carbon black, 5% ammonium sulfate, diatom Soil is added to 100% by weight. 50% nicosulfuron-atrazine-fluroxypyr water-dispersible granules are prepared by the conventional method for preparing water-dispersible granules from the above-mentioned raw materials, ie, mixing, ultrafine airflow pulverization, mixing, and granulation.

[0022] In this embodiment, the weight ratio of nicosulfuron, atrazine and fluroxyfen can vary from 1 to 50:1 to 80:1 to 50, and the total weight composition of the two is still 50%, forming new embodiment.

Embodiment 3

[0024] Weigh 2% nicosulfuron, 50% atrazine, 20% fluroxyfen, 5% TERSPERSE2700 (polycarboxylate, produced by Huntsman, U.S.), 2% diffusing agent NNO (alkylnaphthalene sulfonate) salt formaldehyde condensate), 2% pull open powder BX (sodium dibutylnaphthalene sulfonate), 2% K-12 (sodium dodecyl sulfate), 3% white carbon black, 5% ammonium sulfate, diatom Soil is added to 100% by weight. 72% nicosulfuron-atrazine-fluroxypyr water-dispersible granules were prepared from the above-mentioned raw materials through the conventional method for preparing water-dispersible granules, ie, mixing, ultrafine airflow pulverization, mixing, and granulation.

[0025] In this embodiment, the weight ratio of nicosulfuron, atrazine and fluroxypyr can be changed between 1~50:1~80:1~50, and the total weight composition of the two is still 72%, forming new embodiment.

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Abstract

The invention discloses a herbicide composition for preventing / killing farmland weeds, and application thereof, and in particular relates to herbicide composition for preventing and controlling gramineae weeds and broad-leaved weeds in cornfields. The composition is a three-element herbicide composition taking Nicosulfuron, Atrazine and Fluroxypyr as active components. The weight ratio of the Nicosulfuron to the Atrazine to the Fluroxypyr in the composition is 1-50:1-80:1-50, preferably 1-10:1-50:1-20. The composition has the advantages of having reasonable components, prevention and control effects superior to the activity when the components are applied separately, synergistic effect and high safety to the crops, expanding weed-controlling spectrum, reducing the frequency of pesticide application, reducing prevention and control cost, slowing down the resistance generation of the weeds and meeting the requirement of pesticide preparations on safety. The fresh-weight prevention and control effect of the composition on gramineae weeds and broad-leaved weeds in cornfields reaches 85.80 to 95.13 percent.

Description

technical field [0001] The present invention relates to a herbicide composition, in particular to a herbicide for controlling grassy weeds and broad-leaved weeds in corn fields, which is composed of nicosulfuron, atrazine and fluroxypyr Active component ternary herbicide composition. Background technique [0002] The English common name of nicosulfuron is nicosulfuron, other Chinese names are Yu Nongle and Nicosulfuron, and the molecular formula is C 15 h 18 N 6 o 6 S. Nicosulfuron is a sulfonylurea herbicide for corn fields. It can effectively control a variety of annual grass weeds, broadleaf weeds and sedge weeds in corn fields when applied after emergence at low doses. It is rapidly absorbed by leaves and roots, and rapidly transported through xylem and phloem. Synthesis of branched-chain amino acids is blocked by acetolactate synthase. Weeds stop growing immediately after application, and the new leaves fade and die within 4-5 days, and gradually spread to the wh...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/70A01N43/40A01P13/00
Inventor 郑敬敏何爱华冯建雄时晓磊张武张崇斌孙瑞赵海军梅红玉乌小瑜苏蓓段莹
Owner SHAANXI SUNGER ROAD BIO SCI
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