Wettable powder of propargyl ester and preparation method thereof

A wettable powder, clodinafop-propargyl technology, applied in the field of herbicidal powder and its preparation, can solve the problems of poor thermal storage stability, low melting point clodinafop-propargyl and the like, and achieves stability, improvement of effective suspension rate and utilization of rate, the effect of improving the control effect

Inactive Publication Date: 2017-04-26
新昌县鼎兴生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of clodinafop-propargyl wettable powder and its preparation method, the purpose is to solve the disadvantages of easy caking and poor heat storage stability in the processing of low melting point clodinafop-propargyl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Clodinafop propargyl 5%, safener 1.25%, solvent 1%, emulsifier 1%, wetting agent dispersant 1%, synergist 1%, surfactant 10%, PH regulator 0.5%, filler to 100 %, wherein the mass ratio of safener to clodinafop-propargyl is 1:3-5.

[0041] The 5% clodinafop-propargyl wettable powder product obtained in this embodiment has good dispersibility, and the effective suspension rate of clodinafop-propargyl has reached 90.1%. This medicament is applied to the wheat field to prevent and control annual grass weeds, and the dosage of active ingredients is 45- 67.5 g / ha, 40 days after application, the overall plant control effect on grass weeds is 84.6%-91.5%, and the fresh weight control effect is 85.0%-92.9%, which is safe to wheat.

Embodiment 2

[0043] Clodinafop propargyl 15%, safener 2.5%, solvent 8%, emulsifier 5%, wetting agent dispersant 8%, synergist 15%, surfactant 10%, PH regulator 0.5%, filler to 100 %, wherein the mass ratio of safener to clodinafop-propargyl is 1:3-5.

[0044] The 15% clodinafop-propargyl wettable powder product obtained in this example has good dispersibility, and the effective suspension rate of clodinafop-propargyl has reached 88.7%. Apply the agent to the wheat field to control annual grass weeds, the dosage of active ingredients is 45-67.5 g / ha, 40 days after application, the overall plant control effect on grass weeds is 86.1%-92.2%, fresh weight control The efficacy is 87.3%-95.5%, which is safe for wheat.

Embodiment 3

[0046] Clodinafop propargyl 8%, safener 1.5%, solvent 5%, emulsifier 3%, wetting agent dispersant 5%, synergist 9%, surfactant 10%, PH regulator 0.5%, filler to 100 %, wherein the mass ratio of safener to clodinafop-propargyl is 1:3-5.

[0047] The 8% clodinafop-propargyl wettable powder product obtained in this example has good dispersibility, and the effective suspension rate of clodinafop-propargyl has reached 88.3%. The agent was applied to the wheat field to control annual gramineous weeds, the dosage of active ingredients was 45-67.5 g / ha, 40 days after application, the overall plant control effect on gramineous weeds was 84.8%-90.7%, fresh weight control The efficacy is 86.5%-93.1%, which is safe for wheat.

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Abstract

The invention provides a wettable powder of propargyl ester. The powder is prepared from, by weight, 5-20% of clodinafop-propargyl, 1.25-5% of safener, 1-15% of solvent, 1-8% of emulsifier, 1-15% of moisturizing dispersant, 1-25% of synergist, 10% of surface activating agent, 0.5% of pH conditioning agent and the balance filler, and the total percentage of the materials is 100%, wherein the mass ratio of the safener to clodinafop-propargyl is 1:(3-5). The wettable powder of propargyl ester overcomes the deficiencies that caking is prone to happen, and the heat preservation stability is bad in the processing process of low melting point propargyl ester.

Description

technical field [0001] The invention relates to a herbicide powder and a preparation method thereof, in particular to a clodinafop-propargyl wettable powder and a preparation method thereof. Background technique [0002] Phenoxycarboxylic acid herbicides are a class of acetyl-CoA carboxylase (Accase) inhibitors, which began to be put into production and application in the 1950s and 1960s. Due to their low price, fast weeding speed, wide weeding spectrum, and no residue It has always played an important role in production and is widely used in wheat, corn and rice fields to control broad-leaved weeds. The trade name of clodinafop-propargyl is Topic, and the chemical name is (R)-2-[4-(5-chloro-3-fluoro-2-pyridyloxy) propargyl propionate. Clodinafop-propargyl is a systemic conductive herbicide, which can effectively control sagegrass, oats, ryegrass, common bluegrass, foxtail, etc. Clodinafop-propargyl is safe to wheat and is suitable for weeding winter wheat and spring wheat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/40A01N25/32A01N25/14A01P13/00
CPCA01N43/40A01N25/14A01N25/32
Inventor 秦传利郭婷婷
Owner 新昌县鼎兴生物技术有限公司
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