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A herbicidal composition containing propargyl oxadiazone and bispyribac

A herbicidal composition and technology of propargyl oxadiazone, applied in the field of pesticides, can solve the problems of high frequency of application and dosage in the field, damage to rice and soil quality, poor weed control effect, etc., and achieve good control effect and low Residual, low-cost effects

Inactive Publication Date: 2011-11-30
HEFEI XINGYU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During use, it was found that when the herbicide propargyl oxadiazone or bispyribac was used alone, the frequency of application and dosage in the field were large, the effect of weed control was not good, and it was easy to cause great damage to rice and soil quality

Method used

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  • A herbicidal composition containing propargyl oxadiazone and bispyribac
  • A herbicidal composition containing propargyl oxadiazone and bispyribac
  • A herbicidal composition containing propargyl oxadiazone and bispyribac

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The weight ratio and preparation method of each component of 76.5% propargyl oxadiazone · bispyribac wettable powder:

[0017] Propyloxadiazone 75%,

[0018] Bispyribac 1.5%,

[0019] Methylcellulose 3%,

[0020] JFC 2%,

[0021] Kaolin 18.5%.

[0022] The materials are fully mixed under stirring conditions, crushed and poured to a certain fineness. Carry out a comparative drug efficacy test: rice 2-4 leaf stage, weeds 2-5 leaf stage spraying, 30 days after the application, the control effect of the investigated plants is as follows:

[0023] Table 1

[0024]

[0025] The test results show that the herbicidal effect of the mixed use of propargyl clomazone and bispyribac is higher than that of any single agent in the components, which is beneficial to increase the efficacy of each other, and has no antagonistic effect.

[0026]

Embodiment 2

[0028] The weight ratio and preparation method of each component of 16% propargyl oxadiazone · bispyribac wettable powder:

[0029] Propyloxadiazone 10%,

[0030] Bispyribac 6%,

[0031] Sodium lignosulfonate 4%,

[0032] NNO 3%,

[0033] BX 1%,

[0034] Silica, clay 76%.

[0035] The materials are fully mixed under stirring conditions, crushed and poured to a certain fineness. Carry out a comparative drug efficacy test: rice 2-4 leaf stage, weeds 2-5 leaf stage spraying, 30 days after the application, the control effect of the investigated plants is as follows:

[0036] Table 2

[0037]

[0038] The test results show that the herbicidal effect of the mixed use of propargyl clomazone and bispyribac is higher than that of any single agent in the components, which is beneficial to increase the efficacy of each other, and has no antagonistic effect.

Embodiment 3

[0040] The weight ratio and preparation method of each component of 40% propargyl oxadiazone · bispyribac oil suspension:

[0041] Propyloxadiazone 20%,

[0042] Bispyribac 20%,

[0043] Silica 4%,

[0044] Nongdai 0408 10%,

[0045] Methyl Oleate 46%.

[0046] Put all the materials into the reaction kettle at one time, make them fully mixed under the condition of stirring, and use wet grinding to make the average particle size below 5 μm, so as to obtain the oil suspension. Carry out a comparative drug efficacy test: rice 2-4 leaf stage, weeds 2-5 leaf stage spraying, 30 days after the application, the control effect of the investigated plants is as follows:

[0047] table 3

[0048]

[0049] The test results show that the herbicidal effect of the mixed use of propargyl clomazone and bispyribac is higher than that of any single agent in the components, which is beneficial to increase the efficacy of each other, and has no antagonistic effect.

[0050]

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Abstract

The invention discloses a herbicidal composition containing propargyl clomazone and bispyribac, which contains active components propargyl clomazone and bispyribac with a mass ratio of 1:50-60:1. The herbicidal composition of the present invention has high-efficiency herbicidal effect, wide herbicidal spectrum, low residue, safety to crops, low cost, efficacy and activity beyond the simple superposition of each effective component, has synergistic effect, and has a strong effect on rice field gramineous hybrids. Grass (especially barnyardgrass), sedge weeds and broad-leaved weeds all have good control effects, and one application can basically control the damage of weeds in paddy fields throughout the season.

Description

[0001] technical field [0002] The invention relates to a herbicidal composition for controlling weeds in paddy fields, in particular to a herbicidal composition containing propargyl oxadiazone and bispyribac, and belongs to the technical field of pesticides. [0003] Background technique [0004] China is a large agricultural country, and rice is one of the main crops. Weed damage in paddy fields is one of the main reasons affecting rice yield. How to effectively control the weed damage of rice and stabilize the high yield of rice has become the research topic of modern agricultural herbicides. one of the main subjects. [0005] Oxadiazone propargyl, also known as Daostar, is a new type of diazolone selective herbicide at bud stage developed by Rhone-Planck company in France. It is mainly used in rice, potato, sunflower, vegetable, sugar beet, orchard Control broadleaf weeds before emergence. It can also control barnyardgrass of annual and perennial Gramineae, heterogen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/824A01N43/54A01P13/00
Inventor 赵邦斌方江升
Owner HEFEI XINGYU CHEM
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