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Paddy rice field weeding composition containing propanil and quinclorac

A herbicidal composition, quinclorac technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., to make up for defects and limitations, increase crop yield, and expand the effect of herbicide spectrum

Inactive Publication Date: 2018-09-21
湖南农大海特农化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When propanil and quinclorac are used alone, there are certain defects and limitations

Method used

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  • Paddy rice field weeding composition containing propanil and quinclorac
  • Paddy rice field weeding composition containing propanil and quinclorac
  • Paddy rice field weeding composition containing propanil and quinclorac

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 4

[0040] Embodiment one 44% propanil · quinclorac wettable powder

[0041]

[0042] The above formula is coarsely pulverized in proportion, put into a mixer and mixed evenly, and then jet pulverized to obtain 44% propanil·quinclorac wettable powder.

Embodiment 2 4

[0043] Preparation Example 2 24% propanil·quinclorac suspension concentrate

[0044]

[0045] The above formula is pre-crushed according to the proportion, then added to a sand mill for grinding, and prepared after high-shear mixing to prepare a 24% propanil·quinclorac suspension concentrate.

Embodiment 3 5

[0046] Preparation Example 3 15% propanil·quinclorac water dispersible granules

[0047]

[0048] Dry pulverize, granulate, dry and sieve the above formula in proportion to prepare 40% propanil·quinclorac water-dispersible granules.

[0049] Formulation Example 4 40% propanil·quinclorac dispersible oil suspension concentrate

[0050]

[0051]

[0052] Put the above formula into a sand mill to grind the solid material in proportion, and mix it with the liquid material under high-speed stirring to prepare 40% propanil·quinclorac dispersible oil suspension concentrate.

[0053] Determination of the combined effect of propanil and quinclorac on weeds

[0054] Put a certain amount of soil in a plastic pot with a height of 6 cm and a diameter of 9 cm, sow 15 to 20 seeds of the target weeds in the plastic pot, cover with 0.5 to 1 cm thick fine soil, and cultivate them in a greenhouse until the weeds grow to Stems and leaves were sprayed at the 3rd to 4th leaf stage, spraying...

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PUM

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Abstract

The invention relates to a paddy rice field weeding composition containing propanil and quinclorac. The composition is used for preventing and controlling annual grassy weed of a paddy rice field. According to the composition, a ratio range of parts by weight of propanil to quinclorac is (40 to 1) to (1 to 12). The composition has a remarkable synergistic effect on target weeds in the ratio range;the resistance of the target weeds on a compound is delayed, the safety of the compound on crops is improved and the yield of the crops is improved.

Description

technical field [0001] The invention relates to compound combination application, which is a combination of propanil and quinclorac for controlling weeds in paddy fields. Background technique [0002] Chemical weeding is one of the main means of controlling weeds in agriculture. In recent years, due to the large-scale single use of some herbicide varieties, many weeds have developed resistance. Increasing the amount of herbicides often causes phytotoxicity of crops, and the phenomenon of reduced production is common. At the same time, when weeds occur, the grass phase is complex, different types of weeds are mixed, and the emergence time of weeds is different, and the seeds, young and old weeds occur alternately, so when the herbicide species are used alone, they will show a certain aspect defects and limitations. [0003] Propaniln is a highly selective contact herbicide of amides, which not only destroys photosynthesis of plants, but also inhibits respiration and oxygen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/42A01N37/22A01P13/00
CPCA01N43/42A01N37/22
Inventor 陈佛祥
Owner 湖南农大海特农化有限公司
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