CN110250195A - A kind of composition for disleave, cotton defoliant and preparation method thereof - Google Patents
A kind of composition for disleave, cotton defoliant and preparation method thereof Download PDFInfo
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- CN110250195A CN110250195A CN201910383480.7A CN201910383480A CN110250195A CN 110250195 A CN110250195 A CN 110250195A CN 201910383480 A CN201910383480 A CN 201910383480A CN 110250195 A CN110250195 A CN 110250195A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N27/00—Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
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Abstract
A kind of composition for disleave, cotton defoliant and preparation method thereof, belong to cotton defoliation technical field.Composition for disleave includes: 5~15 parts of Thidiazurons, 15~100 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 1~5 part of cyclopropyl amide in parts by weight.Cotton defoliant includes dispersing agent and the above-mentioned composition for disleave, and dispersing agent includes sodium hydroxide solution.Cotton defoliant can be effectively reduced the use temperature of defoliant, it is made still to be able to maintain good activity and defoliation effect in the environment lower than 20 DEG C of day samming.Cotton leaf functional period and Boll Development phase are able to extend using the lower defoliant of temperature used herein, promote effective development of cotton boll, improves the problem for adopting in Cotton Production for realization machine and being forced spray defoliant too early and influencing fiber production and quality.The preparation method of cotton defoliant includes preparing the first solution and the second solution respectively, then the first solution and the second solution are mixed, this preparation method is simple.
Description
Technical field
This application involves a kind of cotton defoliation technical field, and it is in particular to a kind of de- for the composition of disleave, cotton
Leaf agent and preparation method thereof.
Background technique
Cotton is one of most important industrial crops in China, in recent years major cotton region with plant the cotton structure of labour force change and
Labor cost is substantially increased, and cotton field mechanization degree steps up, and machine pick cotton area expands rapidly.Machine pick cotton has become
The inevitable choice that Cotton in China industry develops in a healthy way.
Chemical defoliation is the core technology that cotton realizes mechanical harvesting, it mainly uses plant growth regulator, intervenes cotton
Flower physiological and biochemical procedure, accelerates plant senesecence, realizes disleave.Chemical defoliation effect becomes the pass that cotton machine pick cotton is smoothly implemented
Key.Defoliation effect is undesirable, the high machine pick cotton harvest efficiency that often results in of percentage of impurity reduces, under the raising of blowing cost and fiber quality
Drop.
Cotton region is influenced by environment and planting system at present, the machine pick cotton of plantation mainly with tie bell blow-of-cottons concentration precocity or
Based on inclined early-maturing variety, the photosynthetic function duration that defoliant then shortens cotton leaf is prematurely sprayed, Boll Development is significantly affected,
Reduce fiber quality and yield；And spray too late defoliant then can because environment temperature reduce due to defoliation effect it is poor, influence final machine
It adopts.
Summary of the invention
The embodiment of the present application provides a kind of composition for disleave, cotton defoliant and preparation method thereof, passes through improvement
The composition and ratio of cotton defoliant significantly reduce the minimum of cotton defoliant and use temperature.
The application first aspect provides a kind of composition for disleave, in parts by weight comprising: 5~15 parts
Thidiazuron, 15~100 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 1~5 part of cyclopropyl amide.
In the above-mentioned technical solutions, Thidiazuron is good defoliant, after Thidiazuron is absorbed by plant, can promote petiole with
Chorista self-assembling formation between stem and fall off；Ethephon (CEPHA),2-(chloroethyl) phosphonic acid is a kind of efficient plant growth regulator, and ethephon (CEPHA),2-(chloroethyl) phosphonic acid can promote
Into fruit maturation.
Thidiazuron, ethephon (CEPHA),2-(chloroethyl) phosphonic acid and solvent cooperation can make cotton maturation and blade is easy to fall off, and machine is facilitated to adopt, but simple
The use temperature for the defoliant that Thidiazuron cooperates with ethephon (CEPHA),2-(chloroethyl) phosphonic acid is higher, it is necessary to could effective disleave at 20 DEG C or more.In reality
In the production of border, when waiting until cotton full maturity, environment temperature often already below 20 DEG C, match with ethephon (CEPHA),2-(chloroethyl) phosphonic acid by simple Thidiazuron
The effect for closing obtained defoliant is poor, influences cotton picking efficiency.And if pursuing defoliation effect, disleave must be sprayed ahead of time
Agent, this will terminate Boll Development in advance, to significantly reduce cotton fibre quality and yield.
Cyclopropyl amide is added in the defoliant of Thidiazuron and ethephon (CEPHA),2-(chloroethyl) phosphonic acid, can be effectively reduced defoliant uses temperature
Degree makes it still be able to maintain good activity and defoliation effect in environment of the day samming lower than 20 DEG C.Using the application
It is middle to be able to extend cotton leaf functional period and Boll Development phase using the lower defoliant of temperature, promote effective hair of cotton boll
It educates, improves the problem for adopting in Cotton Production for realization machine and being forced spray defoliant too early and influencing fiber production and quality.
In some embodiments of aforementioned first aspect, in parts by weight, the composition for disleave is by 5~15 parts
Thidiazuron, 15~100 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 1~5 part of cyclopropyl amide composition.
In some embodiments of aforementioned first aspect, in parts by weight, the composition for disleave includes: 5~
10 parts of Thidiazurons, 20~50 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 3~5 parts of cyclopropyl amides.
In the present embodiment, according to aforementioned proportion, defoliant uses temperature with lower, can make the defoliation effect of cotton
More preferably.
In some embodiments of aforementioned first aspect, in parts by weight, the composition for disleave includes 3~7
Part diffusant.
In the present embodiment, diffusant can help defoliant to be distributed more uniformly across in plant surface, the attachment of defoliant
Property is more preferable.
In some embodiments of aforementioned first aspect, diffusant includes appointing in Tween 80, vegetable oil and organic silicone oil
It anticipates one or more.
In the present embodiment, Tween 80 is polyoxyethylene sorbitan monoleate, and Tween 80, vegetable oil and organic silicone oil are added in defoliant
The consistency that defoliant can be improved improves the viscosity of defoliant.
The application second aspect provides a kind of cotton defoliant comprising dispersing agent and such as above-mentioned combination for disleave
Object, dispersing agent include sodium hydroxide solution；
The mass fraction of Thidiazuron is 0.05~0.15% in cotton defoliant, the mass fraction of ethephon (CEPHA),2-(chloroethyl) phosphonic acid is 0.15~
1.0%, the mass fraction of cyclopropyl amide is 0.01~0.05%, and the mass fraction of sodium hydroxide is 0.15~0.25%.
In the above-mentioned technical solutions, Thidiazuron, ethephon (CEPHA),2-(chloroethyl) phosphonic acid and cyclopropyl amide are dissolved in be formed in sodium hydroxide solution and are taken off
Leaf agent, facilitates field spray.
Defoliant is still able to maintain good activity and defoliation effect in environment of the day samming lower than 20 DEG C, improves
The problem for being forced to spray defoliant too early and influencing fiber production and quality is adopted for realization machine in Cotton Production.
In some embodiments of aforementioned second aspect, in cotton defoliant the mass fraction of diffusant be 0.03~
0.07%.
In the present embodiment, the diffusant of certain content can effectively increase the adhesion effect of defoliant.
In some embodiments of aforementioned first aspect, the use temperature of cotton defoliant is 12~40 DEG C of day samming.
In the present embodiment, the use temperature of cotton defoliant is lower, can improve to a certain extent cotton quality and
Yield.
The application third aspect provides a kind of preparation method of cotton defoliant, and cotton defoliant includes that mass fraction is
0.05~0.15% Thidiazuron, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 0.15~1.0%, the ring that mass fraction is 0.01~0.05%
Propionamide, the sodium hydroxide that mass fraction is 0.15~0.25%, the water of surplus；
The preparation method of cotton defoliant includes:
First solution and the second solution are mixed；
Wherein, the first solution is mixed to get by Thidiazuron and sodium hydroxide solution；
Wherein, the second solution is mixed to get by ethephon (CEPHA),2-(chloroethyl) phosphonic acid, cyclopropyl amide and water.
In the above-mentioned technical solutions, since Thidiazuron is not soluble in water, first mixing Thidiazuron and sodium hydroxide solution makes thiophene
Grand be dissolved in sodium hydroxide solution of benzene forms the first solution, and is dissolved in the water and to form second ethephon (CEPHA),2-(chloroethyl) phosphonic acid and cyclopropyl amide
Solution, then defoliant is obtained by the first solution and the second solution mixing system are standby.Make Thidiazuron in defoliant by adding solvent
Mass fraction is 0.05~0.15%, the mass fraction of ethephon (CEPHA),2-(chloroethyl) phosphonic acid is 0.15~1.0%, the mass fraction of cyclopropyl amide is 0.01
~0.05%.This preparation method is simple.
In some embodiments of the aforementioned third aspect, cotton defoliant includes the expansion that mass fraction is 0.03~0.07%
The preparation method of powder, cotton defoliant includes:
First solution and the second solution are being mixed and then mixed with diffusant.
In the present embodiment, when containing diffusant in defoliant, after the completion of the first solution and the second solution are mixed, finally
Diffusant is added and is uniformly mixed obtained defoliant, made by adding solvent the mass fraction 0.03 of diffusant in defoliant~
0.07%.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is average daily temperature on 10~October of the embodiment of the present application October 30.
Specific embodiment
It, below will be in the embodiment of the present application to keep the purposes, technical schemes and advantages of the embodiment of the present application clearer
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Have below to a kind of composition for disleave of the embodiment of the present application, cotton defoliant and preparation method thereof
Body explanation.
The embodiment of the present application provides a kind of composition for disleave, in parts by weight comprising: 5~15 parts of thiophenes
Benzene is grand, 15~100 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 1~5 part of cyclopropyl amide.
Thidiazuron is the good defoliant of cotton, after Thidiazuron is absorbed by cotton plants, can promote defoliating cotton, facilitates machine
It adopts；
Ethephon (CEPHA),2-(chloroethyl) phosphonic acid is a plant growth regulators, and ethephon (CEPHA),2-(chloroethyl) phosphonic acid can promote fruit maturation；
Cyclopropyl amide can cooperate Thidiazuron and ethephon (CEPHA),2-(chloroethyl) phosphonic acid, so that making the use temperature of defoliant reduces, make the hair of cotton boll
It educates that the period is longer, the quality and yield of cotton fiber can be improved to a certain extent.
Optionally, a kind of composition for disleave, in parts by weight comprising: 5~10 parts of Thidiazurons, 20~
50 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 3~5 parts of cyclopropyl amides.
Optionally, a kind of composition for disleave, in parts by weight comprising: 6~7 parts of Thidiazurons, 30~50
Part ethephon (CEPHA),2-(chloroethyl) phosphonic acid and 4~5 parts of cyclopropyl amides.
Optionally, a kind of composition for disleave, in parts by weight, by 5~15 parts of Thidiazurons, 15~100 parts
Ethephon (CEPHA),2-(chloroethyl) phosphonic acid and 1~5 part of cyclopropyl amide composition.
Optionally, a kind of composition for disleave, in parts by weight, by 5~10 parts of Thidiazurons, 20~50 parts of second
Alkene benefit and 3~5 parts of cyclopropyl amide compositions.
Optionally, a kind of composition for disleave, in parts by weight, by 6~7 parts of Thidiazurons, 30~50 parts of second
Alkene benefit and 4~5 parts of cyclopropyl amide compositions.
It optionally, in parts by weight, further include 3~7 parts of diffusants for the composition of disleave, diffusion has thickening
Effect, diffusant can help defoliant to be distributed more uniformly across in plant surface, and the adhesion of defoliant is more preferable.
Diffusant includes any one or more in Tween 80, vegetable oil and organic silicone oil.
Tween 80 is polyoxyethylene sorbitan monoleate, and polyoxyethylene sorbitan monoleate is nonionic surface active agent, and polyoxyethylene sorbitan monoleate is yellowish
Color is soluble easily in water to orange-yellow thick liquid.
Tween 80, vegetable oil and organic silicone oil are added in defoliant the consistency that can improve defoliant, improve defoliant
Viscosity.
The embodiment of the present application provides a kind of cotton defoliant comprising dispersing agent and the above-mentioned composition for disleave.Group
It closes object and serves as dispersate and be scattered in dispersing agent and form disperse system.Dispersate includes Thidiazuron, ethephon (CEPHA),2-(chloroethyl) phosphonic acid and cyclopropyl amide；Dispersion
Agent includes sodium hydroxide solution.
Since Thidiazuron is not soluble in water, Thidiazuron is dissolved using sodium hydroxide solution.
Thidiazuron, ethephon (CEPHA),2-(chloroethyl) phosphonic acid and cyclopropyl amide are dissolved in sodium hydroxide solution and form defoliant, facilitate field spray.
Wherein, the mass fraction of Thidiazuron is 0.05~0.15% in cotton defoliant, and the mass fraction of ethephon (CEPHA),2-(chloroethyl) phosphonic acid is
0.15~1.0%, the mass fraction of cyclopropyl amide is 0.01~0.05%, the mass fraction of sodium hydroxide is 0.15~
0.25%.
Optionally, cotton defoliant further includes diffusant, in cotton defoliant the mass fraction of diffusant be 0.03~
0.07%.
Due to the addition of cyclopropyl amide, causes the use temperature of cotton defoliant by 20~40 DEG C of day samming, be reduced to day
12~40 DEG C of samming, increase the temperature use scope of cotton defoliant.
The usage amount of cotton defoliant is 375~450L/ha, and cotton defoliant is to carry out blade face spray in the cotton boll blowing later period
It applies, it is desirable that whole uniform the medicine of the blade surface of cotton plant different parts.And 4 points or so sprays in afternoon of fine day are selected under normal circumstances
Apply cotton defoliant.
If spray in the morning, the evaporation of a big chunk defoliant, impact effect are had.If 4 points or so of afternoon sprays, this
When air humidity it is larger, defoliant will not diffusive evaporation it is too many, 4 points or so of afternoon and later sunlight weaken, defoliant is by light
It is less according to decomposition amount, it is able to maintain more effective components.Absorption by a plant pair defoliant the whole night makes its defoliation effect
More preferably.
Rain is met in rear 12h if sprayed, need to increase according to the actual situation and spray defoliant, guarantees the disleave washed away by rainwater
Agent part is supplemented, and guarantees good defoliation effect.
It should be noted that, although cotton defoliant provided by the present application is reduced to 12 from 20 DEG C using minimum day samming
DEG C, but cotton defoliant provided by the present application day 12 DEG C of samming hereinafter, still no good defoliation effect, therefore,
Before having sprayed cotton defoliant provided by the present application, need to guarantee that the cotton field sprayed in latter 7 days is average daily by observing weather condition
Temperature is higher than 12 DEG C, then is sprayed, and day samming is avoided to spray the bad situation of rear defoliation effect lower than 12 DEG C.
The embodiment of the present application also provides a kind of preparation method of cotton defoliant comprising: prepare respectively the first solution and
Then first solution obtained and the second solution mixing system are obtained cotton defoliant by the second solution；Or will directly prepared
One solution and the second solution mixing system obtain cotton defoliant；
First solution is mixed to prepare by Thidiazuron and sodium hydroxide solution, and the second solution is by ethephon (CEPHA),2-(chloroethyl) phosphonic acid, cyclopropyl amide and water
It is mixed to prepare.
Thidiazuron and sodium hydroxide solution are mixed to prepare the first solution according to the proportion；According to the proportion by ethephon (CEPHA),2-(chloroethyl) phosphonic acid, cyclopropyl
Amide and water are mixed to prepare the second solution；The first solution and the second solution are mixed according to the proportion, stirred evenly, with water constant volume.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.05~0.15%, and mass fraction is 0.15~1.0%
Ethephon (CEPHA),2-(chloroethyl) phosphonic acid, the cyclopropyl amide that mass fraction is 0.01~0.05%, the sodium hydroxide that mass fraction is 0.15~0.25%, surplus
Water.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.05~0.15%, and mass fraction is 0.15~1.0%
Ethephon (CEPHA),2-(chloroethyl) phosphonic acid, the cyclopropyl amide that mass fraction is 0.01~0.05%, the sodium hydroxide that mass fraction is 0.03~0.05%, surplus
Water.
Optionally, cotton defoliant can also include the diffusant that mass fraction is 0.03~0.07%, molten by first
Liquid and the second solution are mixed and then are mixed to prepare with diffusant.
The feature of the application and performance are described in further detail with reference to embodiments.
Embodiment 1
The embodiment of the present application provides a kind of composition for disleave.
It in parts by weight, include 7 parts of Thidiazurons, 50 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 5 parts of cyclopropyl amides for the composition of disleave.
Embodiment 2
The embodiment of the present application provides a kind of composition for disleave.
In parts by weight, for the composition of disleave include 7 parts of Thidiazurons, 50 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 5 parts of cyclopropyl amides and
5 parts of Tween 80s.
Embodiment 3
The embodiment of the present application provides a kind of composition for disleave.
In parts by weight, for the composition of disleave include 5 parts of Thidiazurons, 15 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 1 part of cyclopropyl amide and
3 parts of Tween 80s.
Embodiment 4
The embodiment of the present application provides a kind of composition for disleave.
It in parts by weight, include 15 parts of Thidiazurons, 100 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 5 parts of cyclopropyl amides for the composition of disleave
With 7 parts of Tween 80s.
Embodiment 5
The embodiment of the present application provides a kind of composition for disleave.
It in parts by weight, include 10 parts of Thidiazurons, 20 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 3 parts of cyclopropyl amides for the composition of disleave
With 5 parts of vegetable oil.
Embodiment 6
The embodiment of the present application provides a kind of composition for disleave.
In parts by weight, for the composition of disleave include 6 parts of Thidiazurons, 30 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 4 parts of cyclopropyl amides and
5 parts of organic silicone oils.
Embodiment 7
The embodiment of the present application provides a kind of cotton defoliant.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.07%, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 0.50%, quality
The cyclopropyl amide that score is 0.05%, the sodium hydroxide that mass fraction is 0.20%, the water of surplus.
Embodiment 8
The embodiment of the present application provides a kind of cotton defoliant.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.07%, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 0.50%, quality
The cyclopropyl amide that score is 0.05%, the Tween 80 that mass fraction is 0.05%, the sodium hydroxide that mass fraction is 0.20% are remaining
The water of amount.
Embodiment 9
The embodiment of the present application provides a kind of cotton defoliant.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.05%, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 0.15%, quality
The cyclopropyl amide that score is 0.01%, the Tween 80 that mass fraction is 0.03%, the sodium hydroxide that mass fraction is 0.15% are remaining
The water of amount.
Embodiment 10
The embodiment of the present application provides a kind of cotton defoliant.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.15%, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 1.0%, quality point
The cyclopropyl amide that number is 0.05%, the Tween 80 that mass fraction is 0.07%, the sodium hydroxide that mass fraction is 0.25%, surplus
Water.
Embodiment 11
The embodiment of the present application provides a kind of cotton defoliant.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.10%, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 0.20%, quality
The cyclopropyl amide that score is 0.03%, the vegetable oil that mass fraction is 0.05%, the sodium hydroxide that mass fraction is 0.20% are remaining
The water of amount.
Embodiment 12
The embodiment of the present application provides a kind of cotton defoliant.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.06%, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 0.30%, quality
The cyclopropyl amide that score is 0.04%, the organic silicone oil that mass fraction is 0.05%, the sodium hydroxide that mass fraction is 0.15%,
The water of surplus.
Embodiment 13
The embodiment of the present application provides a kind of preparation method of cotton defoliant for preparing embodiment 7.
In parts by weight, the sodium hydroxide solution that 7 parts of Thidiazurons and 500 parts of mass fractions are 4% is mixed to prepare
First solution；
50 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 5 parts of cyclopropyl amides and 9438 parts of water are mixed to prepare the second solution；
First solution and the second solution are uniformly mixed obtained cotton defoliant.
Embodiment 14
The embodiment of the present application provides a kind of preparation method of cotton defoliant for preparing embodiment 8.
In parts by weight, the sodium hydroxide solution that 7 parts of Thidiazurons and 500 parts of mass fractions are 4% is mixed to prepare
First solution；
50 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 5 parts of cyclopropyl amides and 200 parts of water are mixed to prepare the second solution；
First solution and the second solution are mixed and then are uniformly mixed with 5 parts of Tween 80s, cotton finally is made with water constant volume
Flower defoliant.
Embodiment 15
The embodiment of the present application provides a kind of preparation method of cotton defoliant for preparing embodiment 9.
In parts by weight, the sodium hydroxide solution that 5 parts of Thidiazurons and 500 parts of mass fractions are 3% is mixed to prepare
First solution；
15 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 1 part of cyclopropyl amide and 50 parts of water are mixed to prepare the second solution；
First solution and the second solution are mixed and then are uniformly mixed with 3 parts of Tween 80s, cotton finally is made with water constant volume
Flower defoliant.
Embodiment 16
The embodiment of the present application provides a kind of preparation method of cotton defoliant for preparing embodiment 10.
In parts by weight, the sodium hydroxide solution that 15 parts of Thidiazurons and 500 parts of mass fractions are 5% is mixed to prepare
First solution；
100 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 5 parts of cyclopropyl amides and 500 parts of water are mixed to prepare the second solution；
First solution and the second solution are mixed and then are uniformly mixed with 7 parts of Tween 80s, cotton finally is made with water constant volume
Flower defoliant.
Embodiment 17
The embodiment of the present application provides a kind of preparation method of cotton defoliant for preparing embodiment 11.
In parts by weight, the sodium hydroxide solution that 10 parts of Thidiazurons and 500 parts of mass fractions are 4% is mixed to prepare
First solution；
20 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 3 parts of cyclopropyl amides and 100 parts of water are mixed to prepare the second solution；
First solution and the second solution are mixed and then are uniformly mixed with 5 parts of vegetable oil, cotton finally is made with water constant volume
Flower defoliant.
Embodiment 18
The embodiment of the present application provides a kind of preparation method of cotton defoliant for preparing embodiment 12.
In parts by weight, the sodium hydroxide solution that 6 parts of Thidiazurons and 500 parts of mass fractions are 3% is mixed to prepare
First solution；
30 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids, 4 parts of cyclopropyl amides and 160 parts of water are mixed to prepare the second solution；
First solution and the second solution are mixed and then are uniformly mixed with 5 parts of organic silicone oils, is finally made with water constant volume
Cotton defoliant.
Comparative example 1
The application comparative example provides a kind of cotton defoliant.
Cotton defoliant includes the Thidiazuron that mass fraction is 0.07%, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 0.50%, quality
The sodium hydroxide solution that score is 1.0%, the water of surplus.
Comparative example 2
The application comparative example provides a kind of cotton defoliant.
Cotton defoliant includes 50% Thidiazuron wettable powder (Sichuan Guoguang Agrochemical Co., Ltd.) He Banbao (moral
Bayer Cropscience Co., Ltd, state).
Comparative example 3
The application comparative example provides a kind of cotton defoliant.
Cotton defoliant includes 50% Thidiazuron wettable powder (Sichuan Guoguang Agrochemical Co., Ltd.), 40% ethylene
Sharp aqua (the rich agrochemicals Science and Technology Ltd. in Jiangsu) He Banbao (Bayer Bitterfeld GmbH crop science company).
The cotton defoliant provided embodiment 7~12 and comparative example 1~3 is tested.
It is tested in rice and kernel seed farm.It is broadcast live cotton after harvesting wheat, kind used is nakamise 50, and the sowing time is
Amounted to 54 cells of sowing, each plot area 40m June 82, using etc. line-spacings plant, line-spacing 76m, 97500 plants of density/
Ha or so.
Cotton defoliant is sprayed to 27 cells in cotton boll blowing phase October 10, it is de- that every 3 cells spray a kind of cotton
Leaf agent.Blow-of-cottons rate is 45% or so at this time, fine, spray using double-layer hanging vertical-horizontal nozzle sprayer each
Defoliant processing.The liquid measure that sprays of embodiment 7~12 and comparative example 1 is each about 450L/ha；Comparative example 2 sprays liquid measure
For 50% Thidiazuron wettable powder 600g/ha, with treasured 1L/ha；The liquid measure that sprays of comparative example 3 is 50% Thidiazuron wettable powder
Agent 600g/ha, 40% ethephon agent 3L/ha, companion treasured 1L/ha.
Field temperature meteorological index after record application.Investigate 20 plants of each cell within 14 days after the spray same day and spray
Cotton total leaf number and total bell number calculate disleave rate；30 days after medicine, every cell selects 20 plants of cottons to carry out receipts flower, after drying
Weighing calculates single plant bell number and bell weighs and calculate seed cotton yield, and lint yield and clothing part are calculated after crimping using roller, and gined cotton is surveyed
Determine fiber quality.Three cells for applying same cotton defoliant are averaged.It is as shown in table 1:
Table sprayed output of cotton and fiber quality after defoliant 1 October 10
Cotton defoliant is sprayed to remaining 27 cells in cotton boll blowing phase October 20, every 3 regions spray a kind of cotton
Flower defoliant.Blow-of-cottons rate is 70% or so at this time, fine, is sprayed using double-layer hanging vertical-horizontal nozzle sprayer
The liquid measure that sprays of each defoliant processing, embodiment 7~12 and comparative example 1 is each about 450L/ha；Comparative example 2 sprays
Liquid measure is 50% Thidiazuron wettable powder 600g/ha, with treasured 1L/ha；The liquid measure that sprays of comparative example 3 is that 50% Thidiazuron is wettable
Property pulvis 600g/ha, 40% ethephon agent 3L/ha, with treasured 1L/ha.
Field temperature meteorological index after record application.The cotton of 20 plants of each cell was investigated within 10 days after the spray same day and spray
Flower total leaf number and total bell number calculate disleave rate；30 days after medicine, every cell selects 20 plants of cottons to carry out receipts flower, claims after drying
Re-computation list basal munure and bell weigh and calculate seed cotton yield, measure fiber quality after roller cotton ginning.Apply same cotton defoliation
Three cells of agent are averaged.It is as shown in table 2:
Table sprayed output of cotton and fiber quality after defoliant 2 October 20
Average daily temperature on 10~October of October 30 is measured respectively, as shown in Figure 1.As shown in Figure 1, to 10 after October 10
Months 17 days day samming at 15 DEG C or so；October 20 to October 25 day samming at 15 DEG C or so, October 25 is extremely
October 27 day samming at 12~15 DEG C or so.
By Tables 1 and 2 it is found that the cotton defoliant of embodiment 7~12 is in 12~15 DEG C of samming or so of defoliation effect of day
It is better than general defoliant in market and the defoliant of cyclopropyl amide is not added, cotton can be promoted in 15 DEG C of samming or so of day
Under conditions of disleave rate reach 90% or more, promote cotton disleave rate under conditions of 12~15 DEG C of samming or so of day to reach 85%
More than.It realizes mechanized harvest, and significantly improves bell weight and fibre length, to improve yield and fiber to a certain extent
Quality.
In conclusion a kind of composition for disleave of the embodiment of the present application, cotton defoliant and preparation method thereof, lead to
The composition and ratio for improving cotton defoliant are crossed, can be effectively reduced the use temperature of defoliant, make it in day samming lower than 12
Good activity and defoliation effect are still able to maintain in~20 DEG C of environment.It is lower de- using temperature used herein
Leaf agent is able to extend cotton leaf functional period and Boll Development phase, promotes effective development of cotton boll, improves in Cotton Production
The problem for being forced spray defoliant too early and influencing fiber production and quality is adopted for realization machine.
Embodiments described above is some embodiments of the present application, instead of all the embodiments.The reality of the application
The detailed description for applying example is not intended to limit claimed scope of the present application, but is merely representative of the selected implementation of the application
Example.Based on the embodiment in the application, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall in the protection scope of this application.
Claims (10)
1. a kind of composition for disleave, which is characterized in that in parts by weight, the composition includes: 5~15 parts of thiophenes
Benzene is grand, 15~100 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 1~5 part of cyclopropyl amide.
2. the composition according to claim 1 for disleave, which is characterized in that in parts by weight, the combination
Object is made of 5~15 parts of Thidiazurons, 15~100 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 1~5 part of cyclopropyl amide.
3. the composition according to claim 1 for disleave, which is characterized in that in parts by weight, the combination
Object includes: 5~10 parts of Thidiazurons, 20~50 parts of ethephon (CEPHA),2-(chloroethyl) phosphonic acids and 3~5 parts of cyclopropyl amides.
4. the composition according to claim 1 for disleave, which is characterized in that in parts by weight, the combination
Object includes 3~7 parts of diffusants.
5. the composition according to claim 4 for disleave, which is characterized in that the diffusant includes Tween 80, plants
Any one or more in object oil and organic silicone oil.
6. a kind of cotton defoliant, which is characterized in that the cotton defoliant includes that dispersing agent and such as Claims 1 to 5 are any
The composition for disleave described in, the dispersing agent includes sodium hydroxide solution；
The mass fraction of Thidiazuron described in the cotton defoliant is 0.05~0.15%, and the mass fraction of the ethephon (CEPHA),2-(chloroethyl) phosphonic acid is
0.15~1.0%, the mass fraction of the cyclopropyl amide is 0.01~0.05%, and the mass fraction of the sodium hydroxide is 0.15
~0.25%.
7. cotton defoliant according to claim 6, which is characterized in that the quality of diffusant point in the cotton defoliant
Number is 0.03~0.07%.
8. cotton defoliant according to claim 7, which is characterized in that the use temperature of the cotton defoliant is average daily
12~40 DEG C of temperature.
9. a kind of preparation method of cotton defoliant, which is characterized in that the cotton defoliant include mass fraction be 0.05~
0.15% Thidiazuron, the ethephon (CEPHA),2-(chloroethyl) phosphonic acid that mass fraction is 0.15~1.0%, the cyclopropyl acyl that mass fraction is 0.01~0.05%
Amine, the sodium hydroxide that mass fraction is 0.15~0.25%, the water of surplus；
The preparation method of the cotton defoliant includes:
First solution and the second solution are mixed；
Wherein, first solution is mixed to get by the sodium hydroxide solution that Thidiazuron is 3~5% with mass fraction；
Wherein, second solution is mixed to get by ethephon (CEPHA),2-(chloroethyl) phosphonic acid, cyclopropyl amide and water.
10. the preparation method of cotton defoliant according to claim 9, which is characterized in that the cotton defoliant includes
The diffusant that mass fraction is 0.03~0.07%, the preparation method of the cotton defoliant include:
First solution and second solution are being mixed and then mixed with the diffusant.
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| CN111264550A (en) * | 2020-03-30 | 2020-06-12 | 中国农业科学院棉花研究所 | Cotton defoliating agent composition and application thereof |
| CN111374141A (en) * | 2020-03-30 | 2020-07-07 | 中国农业科学院棉花研究所 | Pesticide composition for defoliation and ripening of cotton and application thereof |
| CN111937880A (en) * | 2020-08-17 | 2020-11-17 | 石河子大学 | Cotton defoliating agent |
| CN113475519A (en) * | 2021-07-09 | 2021-10-08 | 江苏省农业科学院 | Mung bean defoliant composition, mung bean defoliant and preparation method and using method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111264550A (en) * | 2020-03-30 | 2020-06-12 | 中国农业科学院棉花研究所 | Cotton defoliating agent composition and application thereof |
| CN111374141A (en) * | 2020-03-30 | 2020-07-07 | 中国农业科学院棉花研究所 | Pesticide composition for defoliation and ripening of cotton and application thereof |
| CN111937880A (en) * | 2020-08-17 | 2020-11-17 | 石河子大学 | Cotton defoliating agent |
| CN111937880B (en) * | 2020-08-17 | 2021-06-29 | 石河子大学 | Cotton defoliating agent |
| CN113475519A (en) * | 2021-07-09 | 2021-10-08 | 江苏省农业科学院 | Mung bean defoliant composition, mung bean defoliant and preparation method and using method thereof |
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| CN110250195B (en) | 2021-06-08 |
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