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Paddy field herbicide composition and preparation thereof

A herbicidal composition and herbicide technology, applied in the field of pesticides, can solve the problems of rice safety impact, unfavorable rice growth, poor control effect of older grass weeds, etc., and achieve good application prospects and environment-friendly effects

Active Publication Date: 2011-04-06
ANHUI FENGLE AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cyhalofop-ethyl herbicide is ineffective against sedges and broad-leaved weeds, and has poor control effect on some older grasses
Therefore, cyhalofop-ethyl herbicide is often mixed with other herbicides alternately, but this affects the safety of rice and is not conducive to the growth of rice

Method used

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  • Paddy field herbicide composition and preparation thereof
  • Paddy field herbicide composition and preparation thereof
  • Paddy field herbicide composition and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: the herbicidal composition herbicidal effect of the present invention and combined action determination

[0025] Under greenhouse conditions, the herbicidal effect of the herbicidal composition of the present invention was detected by pot test method, and the combined effect type after the two were mixed in different proportions was evaluated by Sun Yunpei's co-toxicity coefficient method.

[0026] 1. Test materials and cultivation methods

[0027] The tested rice was Fengliangyou 1; the tested weed species were Echinochloa crusgalli L., Leptochloa chinensis (L.) Nees), Moshangcai (Lindernia procumbens (Krock.) Philcox), The seeds of Ludwigiaprostrata Roxb., Cyperus difformis L. and the tested weeds were collected from the field in the previous year, and the germination rate was above 85%.

[0028] Cultivate the test materials in a light culture room at a temperature of 25-35°C. Choose a polyethylene plastic pot with a diameter of 15 cm and a height of 1...

Embodiment 2

[0054] Embodiment 2: the safety determination of herbicidal composition of the present invention to rice

[0055] Under greenhouse conditions, a pot test method is adopted to detect the safety of the herbicidal composition of the present invention to rice.

[0056] 1. Test materials and cultivation methods

[0057] The tested rice was Yedan 2; the tested weed species were Echinochloa crusgalli L., Leptochloa chinensis (L.) Nees), Moshangcai (Lindernia procumbens (Krock.) Philcox), clove Polygonum (Ludwigia prostrata Roxb.), heteromorphous sedge (Cyperus difformis L.), and the tested weeds were all seeds collected from the field in the previous year, and the germination rate was above 85%.

[0058] Cultivate the test materials in a light culture room at a temperature of 25-35°C. Choose a polyethylene plastic pot with a diameter of 15 cm and a height of 15 cm, and a permeable hole with a diameter of 1 cm is punched at the bottom of the pot. The permeable hole is covered with ...

Embodiment 3

[0080] Embodiment 3: preparation herbicide-emulsifiable concentrate of the present invention

[0081] EC specifications: 10% flufenacet·cyhalofop-methyl, cyhalofop-methyl:flufenacet=1:1.5. Take 6kg of flufenacet, 4kg of cyhalofop-methyl, 8kg of emulsifier 2201 (nonylphenol polyoxyethylene ether), and xylene to make up to 100kg. The emulsifiable concentrate product is obtained by fully mixing and blending in a brewing kettle and packaging.

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PUM

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Abstract

The invention relates to the field of pesticides, and discloses a paddy field herbicide composition and a preparation thereof. The herbicide composition of the invention comprises cyhalofop-butyl and flufenacet, wherein the mass ratio of the cyhalofop-butyl to the flufenacet is 1:1-3; the preparation of the herbicide composition consists of the herbicide composition serving as an active ingredient; and the preparation has the formulations of missible oil, oil suspension agent, wettable powder or water dispersible granules. The herbicide composition and the preparation thereof of the inventioncan prevent and kill off gramineous weeds, sedge weeds and broadleaf weeds, is safe to paddy, does not have influence on after-reap crops, is environment-friendly and has good application prospect.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a paddy field herbicidal composition and its preparation. Background technique [0002] Rice is an annual gramineous plant, which is produced on all continents except Antarctica. Rice is not only the most important food crop in my country, but also one of the main food crops in the world. The world's rice cultivation area is about 145 million hectares. The sown area of ​​rice in my country accounts for 1 / 4 of the country's grain crops. Regardless of planting area or output, rice ranks first among food crops in my country. However, rice fields in all rice-growing regions in my country have suffered from weed damage to varying degrees. Among them, the area of ​​moderate weed damage accounts for more than 46% of the total planting area of ​​rice, and the area of ​​severe weed damage accounts for more than 11.5%. These weeds compete with rice in all aspects and cause damage to rice, resu...

Claims

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Application Information

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IPC IPC(8): A01N43/824A01N39/04A01P13/00
Inventor 龚国斌陈克付徐松林
Owner ANHUI FENGLE AGROCHEM
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