CN101385463A - Cotton defoliant - Google Patents
Cotton defoliant Download PDFInfo
- Publication number
- CN101385463A CN101385463A CNA2008100796538A CN200810079653A CN101385463A CN 101385463 A CN101385463 A CN 101385463A CN A2008100796538 A CNA2008100796538 A CN A2008100796538A CN 200810079653 A CN200810079653 A CN 200810079653A CN 101385463 A CN101385463 A CN 101385463A
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- cotton
- chlorate
- defoliant
- ethrel
- cotton defoliant
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Abstract
The invention relates to a physiological time-released type cotton defoliating agent, which consists of the following chemical substances of 40 percent of ethephon, 8-hydroxy quinoline, chlorate, hypertonic speader and the like. The effect of the cotton defoliating agent of the invention is more moderate and lower, thus being beneficial to post-maturation and blooming of the late boll, more particularly, the autumn boll still blooms after frost. The cotton defoliating agent of the invention not only has the function of physiological defoliation, but also has adjustment function of adjusting the openness of stoma of the surface of leaves, can prolong the function period of the leaves and is a novel cotton defoliating agent with both functions of anti-bacterium and sterilization.
Description
Technical field
The invention belongs to plant growth regulator, be specifically related to a kind of crop defoliant, particularly a kind of cotton defoliant that before cotton harvesting, uses.
Background technology
On cotton, use defoliant that the history in more than 30 year has been arranged.Use cotton defoliant can accelerate the cotton boll cracking, improve maturity, eliminate the influence of blade blow-of-cottons.Particularly rainy in the fall area uses defoliant can help ventilating, and reduces because of the rainy cotton boll that causes is rotten and takes place with disease.
It is that cotton and the manual indispensable important technique measure of cotton of adopting are adopted in mechanization that cotton is carried out chemical disleave, it can make mechanization adopt cotton and manual adopt cotton operating efficiency and improve 1～2 times, can reduce mechanization simultaneously and adopt the pollution to unginned cotton of cotton percentage of impurity and cotton leaf.
Cotton defoliant at present commonly used mainly contains ethrel, the treasured that comes off, Thidiazuron, paraquat (also claiming gram no track) and MAGSOL etc., and these defoliants all have certain effect to cotton defoliation, current being widely used in the domestic and international Cotton Production.
The common defects of above-mentioned cotton defoliant is that the time of application scope is narrow, and disleave speed is fast, for the cotton after-ripening that is in the term of opening bolls harmful effect is arranged, and is promptly influential to cotton quality.The therein ethylene profit is relatively gentle, and the disleave rate is not high, and is less to the influence of cotton quality.But the precious disleave speed that comes off is unfavorable to the ripe blow-of-cottons of late peach obviously faster than ethrel.Particularly paraquat is the defoliant of a kind of final hit formula (destruction formula), will make leaf rolling withered in 2～4 days, causes majority autumn peach to be difficult to ripe blow-of-cottons, causes the underproduction.Paraquat can not be used for the cotton defoliation with other crop interplantings, otherwise the leaf of interplanting crop can be dried-up in the short a few days.Simultaneously, paraquat is residual also relatively more serious.
Summary of the invention
It is slower to the purpose of this invention is to provide a kind of physiological action, helps the cotton defoliant of cotton after-ripening.
Cotton defoliant of the present invention is made up of the raw material of following parts by weight:
40% ethrel 70～75
Oxine 5～8
Chlorate 13～18
Height oozes spreader-sticker 1～1.2
Wherein, described chlorate is one or both the mixture in potassium chlorate, the magnesium chlorate.
It is azone and/or organic silicon surfactant that described height oozes spreader-sticker.
For realizing purpose of the present invention, need to seek a kind of ethene sustained release agent, make the speed of ethrel release ethene slow and lasting.We find that the quinolines particularly hydroxy derivatives of quinoline can meet design requirement, and itself and defoliant ethrel and chlorate etc. are made mixture test, and are satisfactory for result.
The concrete preparation method of cotton defoliant of the present invention is: elder generation is crushed to oxine, chlorate respectively 80～100 fineness, ooze spreader-sticker according to above-mentioned weight ratio and height again and 40% ethrel mixes, stirred 20 minutes, and after guaranteeing to mix, obtained the pulpous state product.
During use, take by weighing a certain amount of cotton defoliant of the present invention, convert water dilution according to 200～400 times ratio after, spray and on the cotton blade face, get final product.
By following field experiment of carrying out, can prove the effect of cotton defoliant of the present invention, experimental result is as follows:
Experimental period: September 7,12 days, the morning 9 on the 17th were up to 9: 30;
Each processing area: 0.5 mu;
Effect observation: use cotton defoliant of the present invention, 3 days begin that slight leaf roll performance is arranged behind the medicine; Apparent in view leaf roll phenomenon was arranged on the 7th day; The 12nd day, down about 1/3rd had the withered performance of leaf from the top, and cotton boll begins blow-of-cottons and receives flower; In the time of the 20th day, the bent and atrophy of leaf roll occurs completely and come off.
Use simultaneously to come off precious and treasured+the ethrel that comes off is organized in contrast and carried out effect observation relatively, the fallen leaves effect ratio of the finding cotton defoliant of the present invention treasured+ethrel that comes off can exceed more than 12～15%, but speed is gentle.This for the after-ripening of cotton boll, especially the autumn peach ripe blow-of-cottons the time guarantee is provided, be good undoubtedly to improving output.The cotton fiber of output is longer, ginning outturn content compares, and sees Table 1.
Table 1 different time handles fiber yield and fibre length compares
By evidence, reach at 30%～40% o'clock in cotton field nature blow-of-cottons rate, use the treasured that comes off, come off treasured+ethrel and cotton defoliant of the present invention carry out disleave and accelerate the ripening more scientific and reasonable.It is better than single result of use to mix use, and especially the present invention is with the composite better effects if of using of ethrel, oxine and chlorate together, and average disleave rate improves 7%, and the blow-of-cottons rate improves 13.3% (mainly being that autumn peach blow-of-cottons rate obviously increases).Particularly after frost occurs, Qiu Tao still can blow-of-cottons.Prove that cotton defoliant of the present invention is a kind of physiology slow cotton defoliant.
Test is proof also, compares with the combination of the treasured+ethrel that comes off, and cotton defoliant of the present invention is insensitive to the variation of temperature, and the practical operation of being more convenient for is used.
Test is proof also, uses the treasured that comes off respectively, come off treasured+ethrel and cotton defoliant of the present invention carry out disleave and when accelerating the ripening, and cotton quality is had in various degree influence, uses more early, and negative effect is big more.Be that defoliant uses too early, make blade cross presenility easily and come off, finish the function of blade, influence the supply of nutrient to cotton boll, lint percentage reduces, and fiber shortens.
Cotton defoliant of the present invention also has the regulatory function of regulating blade face pore openness except that the function with physiology fallen leaves, can prolong the functional period of blade.
Embodiment
Embodiment 1
Oxine, potassium chlorate, magnesium chlorate are ground into 100 purpose fine powders respectively.
Get the 75Kg40% ethrel and add in the stainless steel material-compound tank, add 6Kg8-oxyquinoline, 12Kg potassium chlorate, 6Kg magnesium chlorate and the water-soluble azone of 1Kg95% successively, reinforced finishing continues to stir 20 minutes, guarantees to mix, and obtains the pulpous state product.
During use, get product 60g and put into the knapsack sprayer that has added 10Kg water in advance, firmly stir, it is fully dissolved.Spraying method is identical with defoliant commonly used.
Embodiment 2
Oxine, potassium chlorate, magnesium chlorate are ground into 80 purpose fine powders respectively.
Get the 72Kg40% ethrel and add in the stainless steel material-compound tank, add 8Kg8-oxyquinoline, 10Kg potassium chlorate, 4Kg magnesium chlorate and 1Kg organic silicon surfactant L-77 successively, reinforced finishing continues to stir 20 minutes, guarantees to mix, and obtains the pulpous state product.
Claims (4)
1, a kind of cotton defoliant, form by the raw material of following parts by weight:
40% ethrel 70～75
Oxine 5～8
Chlorate 13～18
Height oozes spreader-sticker 1～1.2.
2, cotton defoliant according to claim 1 is characterized in that described chlorate is one or both the mixture in potassium chlorate, the magnesium chlorate.
3, cotton defoliant according to claim 1 is characterized in that it is azone or organic silicon surfactant that described height oozes spreader-sticker.
4, the preparation method of the described cotton defoliant of claim 1 is that oxine, chlorate are crushed to 80～100 purpose fineness respectively, oozes spreader-sticker and 40% ethrel mixes according to above-mentioned weight ratio and height, stirs 20 minutes, obtains the pulpous state product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100796538A CN101385463A (en) | 2008-10-24 | 2008-10-24 | Cotton defoliant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100796538A CN101385463A (en) | 2008-10-24 | 2008-10-24 | Cotton defoliant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101385463A true CN101385463A (en) | 2009-03-18 |
Family
ID=40475300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100796538A Pending CN101385463A (en) | 2008-10-24 | 2008-10-24 | Cotton defoliant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101385463A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972440A (en) * | 2012-12-05 | 2013-03-20 | 安阳市小康农药有限责任公司 | Defoliating and yield-promoting agent and preparation method and application thereof |
| CN109169724A (en) * | 2018-08-09 | 2019-01-11 | 陕西谷润作物科学有限公司 | A kind of leaf-protecting agent preventing apple tree early leaf fall and its application method |
-
2008
- 2008-10-24 CN CNA2008100796538A patent/CN101385463A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972440A (en) * | 2012-12-05 | 2013-03-20 | 安阳市小康农药有限责任公司 | Defoliating and yield-promoting agent and preparation method and application thereof |
| CN102972440B (en) * | 2012-12-05 | 2014-05-28 | 安阳市小康农药有限责任公司 | Defoliating and yield-promoting agent and preparation method and application thereof |
| CN109169724A (en) * | 2018-08-09 | 2019-01-11 | 陕西谷润作物科学有限公司 | A kind of leaf-protecting agent preventing apple tree early leaf fall and its application method |
| CN109169724B (en) * | 2018-08-09 | 2021-03-16 | 陕西谷润作物科学有限公司 | Leaf preserving agent for preventing early leaf falling of apple trees and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090318 |