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Weed killer for closing lawn weeds before germination and preparation method thereof

A technology for herbicides and weeds, applied in the direction of herbicides and algicides, botanical equipment and methods, biocides, etc., can solve the problems of few types of herbicides, short duration, and insufficient diversity, etc., to achieve applicable Wide range, long duration, and the effect of increasing the weeding rate

Active Publication Date: 2021-04-30
NANJING AGRICULTURAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are few types of herbicides for lawns, few formulas, less selectivity, and insufficient diversity; there are few research reports on whether herbicides for farmland crops are available on lawns and how to use them; a few herbicides have been used on lawns for many years, resulting in Severe pesticide resistance, poor herbicidal effect and short duration

Method used

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  • Weed killer for closing lawn weeds before germination and preparation method thereof
  • Weed killer for closing lawn weeds before germination and preparation method thereof
  • Weed killer for closing lawn weeds before germination and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Add 6g of 2',4'-difluoro-[2-(3-trifluoromethylphenoxy)]-3-pyridineanilide and 2',6'-difluoro-5-methanol into the container Oxy-8-fluoro[1,2,4]triazol[1,5-c]pyrimidine-2-sulfonanilide 1ml, 2-(2-chlorobenzyl)-4,4-dimethyl Isoxazol-3-one original drug 6ml, add water to 100ml, shake well, take 4 parts of mother liquor, mix 40-60kg of water, and then spray. Before spraying, the soil of the lawn bed must be kept moist.

[0039] The experiments were carried out on Bermudagrass and Zoysia turf. Adopting random block design, processing is formula medicament of the present invention, numbering Y7500; With the pre-emergence herbicide acetochlor widely used in production as contrast agent, numbering Y2000; Spraying equal amount of clear water is blank control (CK); Repeat 4 times; the area of ​​the plot is 2×2m2; there is a 1m wide corridor between each plot. In the test, the pesticide was sprayed immediately the next day after the turf was removed, and the soil of the lawn bed m...

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PUM

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Abstract

The invention discloses a weed killer for closing lawn weeds before germination. The weed killer comprises organic heterocycles, triazolopyrimidine sulfonamides and substituted pyridyl acylanilides. According to the invention, organic heterocycles, triazolopyrimidine sulfonamides and substituted pyridyl anilines are compounded and have a synergistic interaction effect, so that the weeding rate of lawn weeds before germination can be obviously improved; and the weed killer is long in lasting period, wide in application range and suitable for lawns such as cynodon dactylon, zoysia japonica, paspalum natatum and the like.

Description

technical field [0001] The invention relates to a herbicide, in particular to a herbicide for pre-emergence sealing of lawn weeds. Background technique [0002] Chemical control of lawn weeds is the use of chemical herbicides to eliminate weeds on the lawn. There are many kinds of herbicides, which can be divided into pre-emergence herbicides and post-emergence herbicides according to their action characteristics. Pre-emergence herbicides can only be used before or during the emergence of weeds, and are basically ineffective when used after emergence; post-emergence herbicides are usually used after weeds have emerged, and are basically ineffective against weeds that have not germinated in the soil. [0003] At present, there are few types of herbicides for lawns, few formulas, less selectivity, and insufficient diversity; there are few research reports on whether herbicides for farmland crops are available on lawns and how to use them; a few herbicides have been used on la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N43/80A01N43/40A01P13/00
CPCA01N43/40A01N43/80A01N43/90
Inventor 杨志民于景金刘君杨紫荆李高林吴国涛
Owner NANJING AGRICULTURAL UNIVERSITY
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