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CN1067214C - Herbicide for paddy fields and its preparing method - Google Patents

Herbicide for paddy fields and its preparing method Download PDF

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Publication number
CN1067214C
CN1067214C CN96102448A CN96102448A CN1067214C CN 1067214 C CN1067214 C CN 1067214C CN 96102448 A CN96102448 A CN 96102448A CN 96102448 A CN96102448 A CN 96102448A CN 1067214 C CN1067214 C CN 1067214C
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China
Prior art keywords
weeding
paddy
emulsion
mixture
weeds
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Expired - Fee Related
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CN96102448A
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Chinese (zh)
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CN1140015A (en
Inventor
苏春明
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Individual
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Individual
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Priority to CN96102448A priority Critical patent/CN1067214C/en
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Publication of CN1067214C publication Critical patent/CN1067214C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The present invention relates to a weeding mixture for paddy rice fields, upland rice fields and other similar situations and a method for preparing the mixture. The weeding mixture is prepared in a way that a propanil emulsible solution is mixed with a saline solution of MCPA-sodium to obtain an emulsion, and urea as an additive is added to the emulsion to obtain a compound rice field herbicide product during application. The weeding mixture has good weeding effects on various weeds of rice fields, the weeding effects can be taken in three days, and the weeds die down after seven days and have no regeneration capacity. The weeding mixture has specially good effects on cyperaceae weeds and broad-leaved weeds; because of high security, the weeding mixture can not influence the growth, the development, the tiller and the ear bearing of the crops of paddy rice after being used in any period in any dosage; the present invention has the advantages of convenient use, flexibility, labor saving, money saving, economy and practicability.

Description

Compound herbicides for use in paddy and method for making
The present invention relates to a kind of mixture of water, dryland paddy and other similar applications weeding and the method for preparing it.
At present, be used for the goods of paddy field weeding, mainly contain i.e. 2 first, the 4 chlorine sodium salts of 2-methyl-4-chlorophenoxyacetic acid sodium, 2.4D butyl ester and careless jinx etc.2 first, 4 chlorine sodium salts are about in the of 80% to the eradicative rate of weeds in paddy field; 2.4D butyl ester, eradicative rate are about in the of 75%; And they all can not use in morning, the mid-term of weed growth, otherwise, can influence paddy rice growth, grow and tiller, do the later stage more and remedy usefulness.The grass jinx, eradicative rate is about in the of 65%, is suitable for the early stage sealing usefulness of doing, the intermediary and later stages are weak effect then, though but blade of grass can withered and yellow demutation soon.Consumption that the more important thing is them is difficult to grasp, in case the amount conference causes the paddy rice Miao Buchang that contracts, not earing of autumn; Consumption is little weeds are dead or wake up from death, and are serious even cause uncultivated or the underproduction; For this reason, the artificial weeding of often having to be aided with increases heavy manual labor, causes the manpower waste in man-hour.Integrate, the weak point of this several herbicides mainly is: eradicative rate is lower, can not dig up the roots substantially; Safety in utilization is poor.
The objective of the invention is to avoid weak point of the prior art, and good, safe in utilization, the reliable herbicides for use in paddy goods of a kind of property killed are provided and produce the method for this weed killer herbicide.
Can take following technical scheme to realize purpose.It is made mainly by containing 20%3, and the Stam F-34 missible oil of 4-two chloro propionyl polyaniline and 56% 2-methyl-4-chlorophenoxyacetic acid sodium, aqueous solvent are mixed into emulsion, during use, add the compound herbicides for use in paddy goods of urea auxiliary agent.
The best approach of preparation herbicides for use in paddy is:
1, produce mixed emulsion:
A, at 25 °~30 ℃, 2-methyl-4-chlorophenoxyacetic acid sodium is water-soluble, to fully dissolving.The consumption of common solvent water is 1.5~3 times of 2 first, 4 chlorine sodium salts, can dissolve fully, and what of solvent do not have influence to drug effect.Make the 2-methyl-4-chlorophenoxyacetic acid sodium water solution;
Under b, the uniform temp, Stam F-34 missible oil mixes with the 2-methyl-4-chlorophenoxyacetic acid sodium water solution, stirs, and makes mixed emulsion.
Packing mixed emulsion, standby.This emulsion resting period is grown, when layering occurring and having small amount of crystalline to separate out, gets final product with before rocking evenly, and drug effect is not had influence.
2, backup urea auxiliary agent is promptly pressed the Packing Unit of mixed emulsion, corresponding encapsulation aid, standby in addition.According to circumstances, the urea auxiliary agent also can be provided for oneself by the user, at this moment, should make clear and definite usage, consumption explanation in operation instructions.
Be described in further detail in conjunction with the content of embodiment the technical program.
In this herbicides for use in paddy, used various raw materials contain 20%3, the Stam F-34 missible oil of 4-two chloro propionyl polyaniline, and 56% 2-methyl-4-chlorophenoxyacetic acid sodium and urea (containing phosphoamide>46%) all adopt commercial articles can satisfy performance requirement.Selectivity is tagged because this weed killer herbicide belongs to, hormone, mixed type medicament are conducted in interior suction, after spraying, it can suppress the growth of weeds, destroys the growing point of weeds, the leaf of plant, stem, root all can absorb, more obvious to the sub-plant performance of double leaf, after soup is transported to site of action, destroy the physiological function of plant, weeds are subjected to medicine after a few hours, promptly stop growing, stem chap, brittle failure after several days, general 3~7 days can obviously take effect; And medicament does not belong to a virulence difference together to gramineous plants, and the paddy rice body contains the aryl amide hydrolase, and this medicament is decomposed, and loses activity, so harmless to the rice standing grain.Cooperating urea in use mainly is to impel plant to absorb quickly, is decomposed quickly in the rice body, destroys growing point in weeds quickly, impels as early as possible to rot, can demutation; After urea also can be avoided spraying certain hour, by weathering, lose drug effect too quickly.Through repetition test, the consumption proportion of each raw material can take the circumstances into consideration, grasp flexibly in the herbicides for use in paddy, as long as it is 2 first, 4 chlorine sodium salts are water-soluble, be mixed into emulsion with Stam F-34 missible oil again, during use, add people's urea auxiliary agent, spray after converting water, weeds in paddy field all there is result of use preferably, though excessive one times of dose, to paddy rice safety too; This compound weed killer herbicide has better effects to the sedge family and the broad-leaf weeds of water, dryland paddy.
Note, urea can only be spraying before with addition of, as when converting water, adding mixed emulsion and urea.Ten million can not mix system, standby simultaneously with Stam F-34 missible oil, 2 first, 4 chlorine sodium-salt aqueous solutions, otherwise can decompose and lose effectiveness.
During use,, convert water 18Kg~25Kg, can spray one mu of rice field with this herbicides for use in paddy (contain and mix emulsion and urea) 0.4~0.5Kg.Converting the water yield can grasp flexibly, with guarantee evenly to spray in this area, topped getting final product.
In the herbicides for use in paddy, if their consumption, by weight:
20%3, the Stam F-34 missible oil 2~3 of 4-two chloro propionyl polyaniline
56% 2-methyl-4-chlorophenoxyacetic acid sodium 1
Aqueous solvent 1.5~3
Auxiliary agent urea 2.5~5 o'clock, its result of use is better.
Embodiment 1, herbicides for use in paddy, by weight:
Be mixed into emulsion by Stam F-34 missible oil 2.5 and 2 first, 4 chlorine sodium salts 1, aqueous solvent 1.5; During use, add urea auxiliary agent 5.Its weed eradication rate is 99%.
Embodiment 2, herbicides for use in paddy, by weight:
Be mixed into emulsion by Stam F-34 missible oil 2 and 2 first, 4 chlorine sodium salts 1, aqueous solvent 3; During use, add urea auxiliary agent 2.5.Its weed eradication rate is 93%.
Embodiment 3: herbicides for use in paddy, by weight:
Be mixed into emulsion by Stam F-34 missible oil 3 and 2 first, 4 chlorine sodium salts 1, aqueous solvent 1.5; During use, add urea auxiliary agent 4.Its weed eradication rate is 99%.
Embodiment 4: herbicides for use in paddy, by weight:
Be mixed into emulsion by Stam F-34 missible oil 2.25 and 2 first, 4 chlorine sodium salts 1, aqueous solvent 2; During use, add urea auxiliary agent 5.And interpolation 2.4D butyl ester 0.25.Its weed eradication rate is 99%.
The relative prior art of the technical program has following advantage and effect:
1, the property killed is good: water, upland rice various weeds live, that transplant the field are all had kill preferably effect Really, took effect in three days, withered after seven days, do not have the anti-ability of giving birth to; Cyperaceae and broad-leaf weeds are had special efficacy, As can making Herba Cyperi Glomerati, difformed galingale herb, Jing Sansuo, flat bar bamboo trunk grass, Scirpus tabernaemontani, firefly Lin and arrowhead class, Chinese celery, polygonum flaccidum, rhizoma alismatis, Monochoria korsakowii, wild lotus etc. once dig up the roots.
2, security is good: when phase dispenser in office, dose size, to the growth of rice crop, growth, Tiller, booting all do not have impact, can impel on the contrary that rice seedling is dark green to be sent out prosperous.
3, easy to use, flexible, save both labour and money, economical and practical, use at the weed growth animated period, Remarkably productive, concentrate, if use in advance, then can reduce weeds and the seedlings of cereal crops strive fertilizer; 0.07 hectare is only spent several Yuan just can solve big problem.

Claims (2)

1. compound herbicides for use in paddy is characterized in that: by weight, it is by containing 20%3, and 2-methyl-4-chlorophenoxyacetic acid sodium 1, the aqueous solvent 1.5~3 of the Stam F-34 missible oil 2~3,56% of 4-two chloro propionyl polyaniline are mixed into emulsion; During use, add the compound herbicides for use in paddy that people's urea is made again.
2, a kind of preparation method of compound herbicides for use in paddy as claimed in claim 1 is characterized in that,
(1), produce mixed emulsion:
A, at 25 °~30 ℃, 56%2-methyl-4-chlorophenoxyacetic acid sodium is water-soluble, to fully dissolving, makes the 2-methyl-4-chlorophenoxyacetic acid sodium water solution;
Under b, the uniform temp, 20% Stam F-34 missible oil mixes with the 2-methyl-4-chlorophenoxyacetic acid sodium water solution, stirs, and makes mixed emulsion;
(2), the backup urea, other packages spare;
(3), when using, the emulsion of (1) is mixed with urea, make compound herbicides for use in paddy.
CN96102448A 1996-03-07 1996-03-07 Herbicide for paddy fields and its preparing method Expired - Fee Related CN1067214C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN96102448A CN1067214C (en) 1996-03-07 1996-03-07 Herbicide for paddy fields and its preparing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN96102448A CN1067214C (en) 1996-03-07 1996-03-07 Herbicide for paddy fields and its preparing method

Publications (2)

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CN1140015A CN1140015A (en) 1997-01-15
CN1067214C true CN1067214C (en) 2001-06-20

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103027036B (en) * 2013-01-16 2014-12-10 山东潍坊润丰化工股份有限公司 Phytocidal composite containing methoxone salt and propanil and applications thereof
CN107006469A (en) * 2017-04-25 2017-08-04 浙江中山化工集团股份有限公司 A kind of herbicide composition for paddy fields

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106327A (en) * 1985-08-10 1986-11-26 化学工业部沈阳化工研究院 A new method for the synthesis of metalaxyl from methyl N-(2,6-xylyl)alanine
CN87100152A (en) * 1986-01-10 1987-08-12 Fmc有限公司 The compound of weeding

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106327A (en) * 1985-08-10 1986-11-26 化学工业部沈阳化工研究院 A new method for the synthesis of metalaxyl from methyl N-(2,6-xylyl)alanine
CN87100152A (en) * 1986-01-10 1987-08-12 Fmc有限公司 The compound of weeding

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
农用化学品 1995.1.1 化工出版社 *
国外农药品种手册一 1980.1.1 化学工业产,农药情报中心站 *
国外农药品种手册一 1980.1.1 化学工业产,农药情报中心站;农用化学品 1995.1.1 化工出版社;新编农药手册 1989.10.1 农业出版社 *
新编农药手册 1989.10.1 农业出版社 *

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