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Effervescence preparation containing pyrazosulfuron-ethyl, pretilachlor and pentoxazone and preparation process of effervescence preparation

A technology of cyclopentazone and effervescent preparations, which is applied in the direction of herbicides, algicides, biocides, biocides, etc., can solve the problems of herbicide resistance, high cost, and many medications, and achieve Significant synergistic effect, normal leaf color, and crop safety effects

Inactive Publication Date: 2018-09-21
山东耘歌生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] With the promotion of herbicide application, a single herbicide is not only easy to produce drug resistance, but also requires more drugs, large residues, and high cost

Method used

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  • Effervescence preparation containing pyrazosulfuron-ethyl, pretilachlor and pentoxazone and preparation process of effervescence preparation
  • Effervescence preparation containing pyrazosulfuron-ethyl, pretilachlor and pentoxazone and preparation process of effervescence preparation
  • Effervescence preparation containing pyrazosulfuron-ethyl, pretilachlor and pentoxazone and preparation process of effervescence preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The evaluation of embodiment 1 mixing effect

[0044] With reference to the combined action determination method of herbicide mixing, the Colby method is used to evaluate the mixed effect of the ternary composition that the present invention relates to (herbicide mixed use and its efficacy evaluation method, Gao Shuang, etc., Pesticide Volume 46, No. 9, September 2007 ).

[0045] The calculation formula is:

[0046] Let E 0 It is the theoretical control effect after single agent A, B and C are mixed;

[0047]

[0048] A, B, and C are the measured control effects of herbicides A, B, and C at a certain dose, respectively;

[0049] Let E be the measured control effect, and the calculation formula is:

[0050]

[0051]If E is significantly smaller than E 0 , it is a synergistic effect; E and E 0 close, it is an additive effect; E is significantly greater than E 0 , it is antagonistic.

[0052] Through a large number of screening tests, a large number of contro...

Embodiment 2

[0057] Example 2 A kind of effervescent preparation containing pyrazosulfuron-methyl, pretilachlor and cyclopentazone and its preparation process

[0058] The effervescent preparation comprises the following components in parts by weight:

[0059] 2 parts of pyrazosulfuron-methyl, 30 parts of pretilachlor, 10 parts of cyclopentazone, 2 parts of isophorone diisocyanate, 0.8 parts of ethylenediamine, 0.5 parts of antifoaming agent, 12 parts of effervescent agent, adhesive 4 parts, 5 parts of dispersant A, 4 parts of wetting agent, 5 parts of dispersant B, 12 parts of 150# solvent naphtha, 12 parts of emulsifier, wherein the content of water in the sustained-release and controlled-release effervescent preparation is less than 1%;

[0060] Described defoamer is organosilicon defoamer;

[0061] Described binding agent is the mixture of polyvinyl alcohol and ethanol, and the weight ratio of mixing is 1:3; Described dispersant A is polycarboxylate, and dispersant B is 2-naphthalenes...

Embodiment 3

[0080] Example 3 An effervescent preparation containing pyrazosulfuron-methyl, pretilachlor and cyclopentazone and its preparation process

[0081] The effervescent preparation comprises the following components in parts by weight:

[0082] 5 parts of pyrazosulfuron-methyl, 75 parts of pretilachlor, 70 parts of cyclopentazone, 4 parts of isophorone diisocyanate, 1 part of ethylenediamine, 1 part of defoamer, 15 parts of effervescent agent, adhesive 5 parts of agent, 6 parts of dispersant A, 4 parts of wetting agent, 8 parts of dispersant B, 20 parts of 150# solvent naphtha, 13 parts of emulsifier, wherein, the content of water in the slow-release and controlled-release effervescent preparation is less than 1%;

[0083] Described defoamer is organosilicon defoamer;

[0084] The binder is a mixture of carboxymethyl cellulose and ethanol, and the mixing weight ratio is 1:3; the dispersant A is polycarboxylate, and the dispersant B is sodium dioctyl succinate sulfonate ; The wet...

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Abstract

The invention relates to an effervescence preparation containing pyrazosulfuron-ethyl, pretilachlor and pentoxazone and a preparation process of the effervescence preparation. The weight ratio of thepyrazosulfuron-ethyl, the pretilachlor to the pentoxazone in the effervescence preparation is (1-5):(10-75):(10-70), and the effervescence preparation has synergistic interaction in the range. The total weed control effect of the effervescence preparation on rice fields reaches 95% or more when the effervescence preparation is 400-500ga.i. / L, the dosage of effective components is reduced, and environmental pressure and production cost are reduced. The effervescence preparation can be applied, and weeds in the rice fields are efficiently and conveniently removed. When the effervescence preparation is used for controlling and removing the weeds in the rice fields, leaf colors crops are normal, growth vigor of the crops is good, and the crops are safe.

Description

technical field [0001] An effervescent preparation containing pyrazosulfuron-methyl, pretilachlor and clomazone and its preparation process, the invention belongs to the field of pesticide preparation and application. Background technique [0002] Pyrazosulfuron-methyl, CAS No. 93697-74-6, molecular formula C 14 h 18 N 6 o 7 S, its structural formula is as follows: [0003] [0004] Pyrazosulfuron-methyl belongs to the sulfonylurea herbicides. It is a selective systemic herbicide. It is mainly absorbed through the root system, and quickly transfers in the weed plant, inhibits growth, and weeds gradually die. Rice can decompose the agent and has almost no effect on rice growth. The efficacy is stable, the safety is high, and the effective period is 25 to 35 days. Pyrazosulfuron-methyl is used to control annual and perennial broad-leaved weeds and sedge weeds in rice seedling fields, direct seeding fields, and transplanting fields, such as heterosexual sedge, water se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/76A01N37/22A01P13/00
CPCA01N37/22A01N43/76A01N47/36
Inventor 王铭孙冬苏跃李宏元赵守明张彩王慧君
Owner 山东耘歌生物科技有限公司
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