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Special herbicide for rice fields

A herbicide, paddy field technology, applied in the directions of herbicides and algaecides, application, biocides, etc., can solve the problems of reducing the effect of weeding, using too long, time-consuming and laborious, etc., to improve labor productivity, low toxicity, Easy-to-use effects

Inactive Publication Date: 2013-05-08
刘晨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original method of weeding is time-consuming and labor-intensive; the current chemical weeding method saves time and effort, but the traditional rice field herbicides have developed drug resistance due to long-term use, which greatly reduces the weeding effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The special herbicide for paddy fields, including the following active ingredients: quinclorac, tetrafenac, pyrifluramid, and cyhalofop-methyl, wherein: 60-100 parts by weight of quinclorac, 10-30 parts by weight of tetramezam 1-10 parts by weight of pyriflufen, 2-15 parts by weight of cyhalofop-methyl, 3-9 parts by weight of emulsifier, 3-9 parts by weight of dispersant, 3-9 parts by weight of wetting agent, and 3 parts by weight of suspending agent -9 parts by weight, 40 parts by weight of filler. The medicine prepared by the present embodiment is used in every 667 square meters under the condition that the water does not submerge the heart of the grass in 5 days to 7 days after throwing in the field of early rice seedling throwing, and in the field of throwing rice seedlings in late rice in 3 days to 5 days after throwing. Mix well with urea and sprinkle together, keep water for 3 to 5 days.

Embodiment 2

[0013] The special herbicide for rice fields according to claim 1, characterized in that it is composed of the following components in the following parts by weight: quinclorac, tetrafenac, pyrimethachlor, and cyhalofop-ethyl, wherein : 80 parts by weight of quinclorac, 20 parts by weight of tetrafenac, 5 parts by weight of pyriflufen, 8 parts by weight of cyhalofop-methyl, 6 parts by weight of emulsifier, 5 parts by weight of dispersant, and 5 parts by weight of wetting agent , 5 parts by weight of suspending agent, 40 parts by weight of filler. The medicine prepared by the present embodiment is used in every 667 square meters under the condition that the water does not submerge the heart of the grass in 5 days to 7 days after throwing in the field of early rice seedling throwing, and in the field of throwing rice seedlings in late rice in 3 days to 5 days after throwing. Mix well with urea and sprinkle together, keep water for 3 to 5 days.

Embodiment 3

[0015] The special herbicide for paddy fields is characterized in that it includes the following active ingredients: quinclorac, tetrafenac, pyriflufen, and cyhalofop-methyl, wherein: 70 parts by weight of quinclorac, and 20 parts by weight of tetrafenac , 9 parts by weight of pyriflufen, 8 parts by weight of cyhalofop-methyl, 4 parts by weight of emulsifier, 4 parts by weight of dispersant, 4 parts by weight of wetting agent, 4 parts by weight of suspending agent, and 40 parts by weight of filler. The medicine prepared by the present embodiment is used in every 667 square meters under the condition that the water does not submerge the heart of the grass in 5 days to 7 days after throwing in the field of early rice seedling throwing, and in the field of throwing rice seedlings in late rice in 3 days to 5 days after throwing. Mix well with urea and sprinkle together, keep water for 3 to 5 days.

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PUM

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Abstract

The invention relates to a special herbicide for rice fields. The special herbicide comprises the following effective components, by weight, 60-100 parts of quinclorac, 10-30 parts of fentrazamide, 1-10 parts of pyriminobac-methyl, 2-15 parts of cyhalofop-butyl, 3-9 parts of an emulsifier, 3-9 parts of a dispersant, 3-9 parts of a wetting agent, 3-9 parts of a suspending aid and 40 parts of a filler. The herbicide is a preparation obtained through the complex formulation of quinclorac, fentrazamide, pyriminobac-methyl and cyhalofop-butyl, and is suitable for the one-time control of gramineous weeds, cyperaceae weeds and broad leaf weeds in various rice fields. The special herbicide overcomes the disadvantages of respective individual efficacies, has the characteristics of obvious synergistic effect, wide weed control spectrum, good weeding effect, safety to rice, safety to environment, use convenience and the like, and has the advantages of obvious yield increase effect, low toxicity, wide application range, effective labor force saving, and labor productivity improvement.

Description

technical field [0001] The invention relates to a herbicide, in particular to a special herbicide for paddy fields. Background technique [0002] China is one of the largest rice producing countries in the world. Weeds in paddy fields are a major obstacle to harvesting in paddy rice cultivation, and they are very harmful. They not only occupy the site, but also consume nutrients such as water and fertilizer. Seriously reduce rice yield and quality. The original method of weeding is time-consuming and labor-intensive. The current chemical weeding method saves time and effort. However, due to the long-term use of traditional paddy herbicides, drug resistance has appeared, which greatly reduces the effect of weeding. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a special herbicide for paddy field, which is a mixed compound preparation with broad herbicidal spectrum, high weeding efficiency, rapid and thorough. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/38A01N43/42A01N43/54A01N39/04A01P13/00
Inventor 刘晨
Owner 刘晨
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