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Herbicide composition containing quinclorac, nicosulfuron and terbuthylazine

A herbicidal composition, the technology of quinclorac, which is applied in the field of pesticides, can solve the problems of not preparing herbicide composition, etc., and achieve the effect of slowing down the resistance of weeds, good weeding effect, and reduced dosage

Inactive Publication Date: 2020-06-09
安徽美程化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, there is no relevant report on combining quinclorac, nicosulfuron and terbuthylazine to prepare herbicide compositions

Method used

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  • Herbicide composition containing quinclorac, nicosulfuron and terbuthylazine
  • Herbicide composition containing quinclorac, nicosulfuron and terbuthylazine
  • Herbicide composition containing quinclorac, nicosulfuron and terbuthylazine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 2

[0014] Example 1 Toxicity determination of quinclorac, nicosulfuron and terbuthyzine on barnyard grass

[0015] Weeds tested: barnyardgrass

[0016] Test method: sow barnyardgrass seeds in plastic pots, set seedlings during the 2-leaf stage, keep 20 barnyardgrass with the same growth potential in each pot, and treat them when they grow to the 3-4 leaf stage. A series of single doses of different concentrations and combinations of mixtures with different ratios were prepared, and the stems and leaves were sprayed with a potter spray device (spray volume 50mL / m2), and each treatment was repeated 4 times. After the treatment, it was placed in the greenhouse for normal management, and the growth of barnyardgrass was observed regularly. After 14 days, the fresh weight of the barnyard grass above the ground was weighed, and the fresh weight inhibition rate was calculated, and the linear regression equation and different combinations were obtained according to the relationship betwee...

Embodiment 2 2

[0021] Example 2 Determination of the control effect of quinclorac, oxazone and terbuthylazine on crabgrass indoor potted plants

[0022] Weeds tested: crabgrass

[0023] Test method: Sow crabgrass seeds in plastic pots, thin out the seedlings after a certain period of time, and keep 20 weeds with the same growth potential in each pot, and treat them when they grow to the 2-3 leaf stage. Stems and leaves were sprayed with a potter spray device (the spray volume was 50mL / m2, see Table 2 for the treatment dosage), and each treatment was repeated 4 times. After treatment, put them in the greenhouse for normal management, observe the growth of crabgrass regularly, weigh the fresh weight of the above-ground parts of crabgrass after 14 days, and calculate the fresh weight inhibition rate.

[0024] Test drug:

[0025] Medicament A: 46% two smoke special wettable powder (quinclorac 8%, nicosulfuron 2%, terbutyzine 36%, calcium lignosulfonate 4%, sodium lauryl sulfate 8% , white car...

Embodiment 3

[0036] Embodiment 3 field control effect measurement

[0037] Test objects: annual weeds such as crabgrass, goosegrass, barnyardgrass, and amaranth in cornfields.

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PUM

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Abstract

The invention provides a herbicide composition which contains quinclorac, nicosulfuron and terbuthylazine. The weight ratio of quinclorac to nicosulfuron to terbuthylazine is (2-8): 1: (12-25). The herbicide composition can be used for preventing and treating annual weeds in corn fields and has a remarkable synergistic effect.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a herbicidal composition and its application. Background technique [0002] Quinclorac is a highly selective quinolinic herbicide that is mainly used to control barnyardgrass in paddy fields. It can also control Yujiuhua, Jingjing, cress, bermudagrass, and saponins, especially on barnyard grass, and is also effective on 4-7-year-old barnyard grass, but it is less effective on annual Cyperaceae weeds, and Perennial sedges are resistant. Nicosulfuron is a sulfonylurea systemic herbicide discovered by Ishihara Sangyo Co., Ltd. in Japan and jointly developed with DuPont of the United States in the late 1980s. It has stem and leaf treatment activity and certain soil sealing effect. Not only has a high safety factor for corn, but also shows high activity against grass weeds, and has inter-generic selectivity. Its mode of action is to inhibit the synthesis of side chain amino a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/70A01N43/42A01P13/00
CPCA01N43/42A01N43/70A01N47/36
Inventor 张习奇
Owner 安徽美程化工有限公司
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