Herbicidal composition for paddy field

A herbicidal composition, a technology for paddy fields, applied in the directions of herbicides, algaecides, biocides, animal repellents, etc., can solve the problems of declining growth effect and the like

Inactive Publication Date: 2015-01-28
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weeds are sensitive to the drug from germination to 2-3 leaf stages, and the best effect is applied at the germination stage of weeds, and the effect decreases with the growth of weeds

Method used

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  • Herbicidal composition for paddy field
  • Herbicidal composition for paddy field
  • Herbicidal composition for paddy field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method of 50% pyrizachlor-oxadiazone wettable powder: coarsely pulverize the following materials according to the proportion, put them into the mixer and mix them evenly, and then make 50% pyrizachlor-oxadiazone after being pulverized twice by airflow wettable powder.

[0040]

Embodiment 2

[0042] The preparation method of 10% pyrizamid-oxazicone suspension concentrate: the following materials are pre-crushed in proportion, then added to a sand mill for grinding, and then prepared after high-shear mixing to prepare 10% pyrimiflub-oxazine Grass ketone suspension preparation.

[0043]

Embodiment 3

[0045] The preparation method of 1% pyrifluzal-propargyl oxadiazone granule: knead the following active ingredients and adjuvants by adding water, knead and shape with a kneading granulator, and then dry the granules with a fluidized bed, By sieving, 1% pyrimiflubac-propargyl oxadiazone granules can be prepared.

[0046]

[0047]

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PUM

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Abstract

The invention discloses an herbicidal composition for a paddy field. The herbicidal composition comprises two effective components of pyriminobac-methyl as an effective component a and one of oxadiazon, oxaziclomefone and oxadiargyl as effective component b. A weight part ratio of the effective component a to the effective component b is in a range of 1:20 to 20:1 and the total weight of the two effective components is 1-90% that of the herbicidal composition. The herbicidal composition is suitable for preventing and extirpating annual weeds of a paddy field. Compared with a single dose, the herbicidal composition has remarkably improved prevention and control effects, reduces both the use dosage of pesticides and the adverse effects of pesticides on the ecological environment, has an important significance to the comprehensive control of weeds resistance and has huge economic and social benefits.

Description

technical field [0001] The invention relates to a paddy field herbicidal composition, which belongs to the pesticide combination technology. Background technique [0002] Chemical weed control is one of the main means of weed control in paddy fields, and the use of a single compound herbicide can easily lead to weed resistance. At the same time, when weeds occur in paddy fields, the grass phase is complex, grass weeds, broad-leaved weeds and other types of weeds are mixed, and the use of a single type of compound herbicide will show some defects and limitations, and cannot be completely eliminated. Eliminate weeds in farmland. The combination of different types of compound herbicides can expand the herbicidal spectrum, improve the actual effect, delay weed resistance, and save time and labor. [0003] Pyrimifluben is a systemic conduction-type professional barnyard killer developed by Japanese Combinatorial Chemicals. It belongs to the pyrimidine salicylic acid herbicide. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/824A01N43/86A01P13/00A01N43/54
Inventor 陈佛祥张志伟王礼文朱刚吴泽伟
Owner GUANGDONG ZHONGXUN AGRI TECH
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