Herbicide for gramineous crop fields and application of herbicide

A technology for grass crops and herbicides, which is applied to the field of herbicides in grass crops, can solve problems such as crop damage, and achieve the effects of low usage, good control effect and good herbicidal effect.

Active Publication Date: 2016-06-01
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of HPPD inhibitors, it wa...

Method used

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  • Herbicide for gramineous crop fields and application of herbicide
  • Herbicide for gramineous crop fields and application of herbicide
  • Herbicide for gramineous crop fields and application of herbicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A herbicide for gramineous crop fields, at least containing the following structural formula

[0026]

[0027] N-dichloroacetyl-3-benzoyl-2,4-piperidinedione and its derivatives or active ingredients of its enol structure; where X 1 -X 4 For: hydrogen, C1-C4 linear alkyl, branched alkyl, halogen, nitro, trifluoromethyl, sulfonyl or methylsulfonyl.

[0028] 1. The herbicide contains wettable powder, water dispersible granule, suspension formulations and oil dispersible suspension concentrates.

[0029] 2. When the herbicide is a wettable powder, it contains the following compounds by weight percentage, active ingredient 25-50%, wetting agent 3-10%, dispersant 3-15% and solid carrier 5-50% %, by weight percentage is as follows.

[0030] 3. When the herbicide is a water-dispersible granule, it contains the following compounds by weight percentage: active ingredient 25-50%, wetting agent 3-10%, disintegrant 3-10%, dispersant 3 -15%, solid carrier 5-40%.

[0031] 4....

Embodiment 2

[0049] 42% 3-p-fluorobenzoyl-2,4-piperidinedione wettable powder

[0050]

Embodiment 3

[0052] 48% N-dichloroacetyl-3-p-fluorobenzoyl-2,4-piperidinedione water dispersible granules

[0053]

[0054]

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PUM

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Abstract

The invention relates to a herbicide for gramineous crop fields and application of the herbicide. The herbicide at least comprises N-dichloroacetyl-3-benzoyl-2, 4-piperidinedione and the derivative of the N-dichloroacetyl-3-benzoyl-2, 4-piperidinedione or the effective constituent of the enol-form structure of the N-dichloroacetyl-3-benzoyl-2, 4-piperidinedione, wherein the formula of the N-dichloroacetyl-3-benzoyl-2, 4-piperidinedione is shown as follows, and X1, X2, X3 and X4 are hydrogen, C1-C4 gaseous normal alkyl, branched alkyl, halogen, nitryl, trifluoromethyl, sulfonyl or methanesulfonyl. The herbicide which can be prepared into wettable powder, water dispersible granules, suspending agent and dispersible oil suspension is good in weeding effect, safe to crops such as corn and wheat, wide in weeding spectrum and good in preventing effect on gramineous weeds.

Description

technical field [0001] The invention belongs to the field of herbicides, and in particular relates to a herbicide used in gramineous crop fields and its application. Background technique [0002] 4-Hydroxyphenylpyruvate dioxygenase (HPPD) is a herbicide target enzyme identified in the 1990s, which interferes with plant photosynthesis, leading to albinism and yellowing of plant meristems, and eventually the death of the entire plant. With HPPD as the target, many herbicides with high activity and different structures have been developed, mainly triketones, isoxazoles, benzophenones, diketonitriles and pyrazoles and other compounds (publication number US5965492, US5786513). In recent years, many research groups in China have successively designed and synthesized a series of compound HPPD inhibitors. However, during the use of HPPD inhibitors, it was found that some inhibitors would cause damage to crops. Contents of the invention [0003] Based on the above deficiencies, ...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N25/14A01N25/04A01P13/00
CPCA01N25/04A01N25/14A01N43/40
Inventor 付颖叶非赵李霞康晶欣王姣
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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