ZA200309364B - Plant treatment composition. - Google Patents
Plant treatment composition. Download PDFInfo
- Publication number
- ZA200309364B ZA200309364B ZA200309364A ZA200309364A ZA200309364B ZA 200309364 B ZA200309364 B ZA 200309364B ZA 200309364 A ZA200309364 A ZA 200309364A ZA 200309364 A ZA200309364 A ZA 200309364A ZA 200309364 B ZA200309364 B ZA 200309364B
- Authority
- ZA
- South Africa
- Prior art keywords
- solution
- composition
- plant
- treatment composition
- plant treatment
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims description 57
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 21
- -1 phosphorus compound Chemical class 0.000 claims description 17
- 239000011574 phosphorus Substances 0.000 claims description 16
- 229910052698 phosphorus Inorganic materials 0.000 claims description 16
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 claims description 16
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 12
- 239000002798 polar solvent Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000004094 surface-active agent Substances 0.000 claims description 8
- 150000007514 bases Chemical class 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000003337 fertilizer Substances 0.000 claims description 6
- 239000000417 fungicide Substances 0.000 claims description 6
- 235000015097 nutrients Nutrition 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 230000000855 fungicidal effect Effects 0.000 claims description 5
- 201000010099 disease Diseases 0.000 claims description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 description 35
- 239000000243 solution Substances 0.000 description 22
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 244000025272 Persea americana Species 0.000 description 2
- 235000008673 Persea americana Nutrition 0.000 description 2
- 231100000674 Phytotoxicity Toxicity 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 2
- 239000003495 polar organic solvent Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- QEWLHSNMEXFSCI-UHFFFAOYSA-N Alloclamide hydrochloride Chemical compound Cl.CCN(CC)CCNC(=O)C1=CC=C(Cl)C=C1OCC=C QEWLHSNMEXFSCI-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 208000003322 Coinfection Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000233654 Oomycetes Species 0.000 description 1
- 241000233678 Peronosporales Species 0.000 description 1
- 241000233614 Phytophthora Species 0.000 description 1
- 241000233626 Plasmopara Species 0.000 description 1
- 241000233639 Pythium Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- DGOBMKYRQHEFGQ-UHFFFAOYSA-L acid green 5 Chemical compound [Na+].[Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=2C=CC(=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S([O-])(=O)=O)=C1 DGOBMKYRQHEFGQ-UHFFFAOYSA-L 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001046 green dye Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000003050 macronutrient Effects 0.000 description 1
- 235000021073 macronutrients Nutrition 0.000 description 1
- 239000011785 micronutrient Substances 0.000 description 1
- 235000013369 micronutrients Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 208000018655 severe necrosis Diseases 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
Description
Technical Field ) This invention relates to a plant treatment composition in the form of a phosphorus containing solution. In one embodiment of the invention the plant treatment composition may comprise a fertilizer. In one particularly important embodiment of the invention the plant treatment composition may comprise a composition for treating plant diseases, especially fungi
The use of phosphorous acid and phosphites as fertilizers and/or fungicides are well known. When used as a fungicide the phosphorous acid is often injected into the trunk of the plant, but it may also be sprayed onto the leaves of the plant, painted onto the stem and/or applied to the soil around the plant stem.
One well-known current commercial phosphorous acid trunk injection solution for use on avocado trees comprises an un-neutralised aqueous . phosphorous acid solution. However, in order to obtain successful application by injection a large number of holes have to be drilled in each trunk (up to about 20 holes) and the solution has to be injected in small quantities at frequent intervals. This is necessary due to the phytotoxicity of the phosphorous acid solution which causes leaf burn if not applied in . this manner. A further problem is that the holes ‘bleed’ profusely and secondary infection of the holes becomes a problem. Severe necrosis of hard wood around the injection sites was also observed.
It is also know to use neutralised aqueous phosphorous acid solutions as trunk injection solutions. Usually KOH and K,CO; are used to neutralise such phosphorous acid solutions. The neutralised solutions have reduced phytotoxicity (less leaf burn) and reduced hole damage.
It has now been found that if a solution comprising a mixture of phosphorous acid (and/or phosphites) and ethanol is used as a trunk injection solution in avocado trees, improved uptake and translocation are obtained.
According to the present invention there is provided a plant treatment ] composition formed by the mixture of - a phosphorus compound; and - an organic polar solvent.
The plant treatment composition preferably comprises a solution, : preferably with the phosphorus compound being dissolved in the organic . polar solvent.
The solution may comprise a concentrated solution of the phosphorus compound. Preferably the solution has a concentration from 1 mol.dm™ to 7.5 mol.dm™® of the phosphorus compound. More preferably the concentration is from 3 mol.dm™ to 7.5 mol.dm?®. Most preferably the concentration is about 6.1 mol.dm™.
The phosphorus compound may comprise an acid, preferably a compound selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid, and salts thereof.
Preferably the phosphorus compound comprises phosphorous acid.
The organic polar solvent preferably comprises a solvent for the . phosphorus compound. The organic polar solvent may comprise an alcohol. The alcohol may include more than one hydroxyl group, but preferably it includes a single hydroxyl group. Preferably it comprises ethanol.
’ In one embodiment of the invention the plant treatment composition may ; consist of only the phosphorus compound dissolved in the organic polar solvent and without the presence of a basic compound. This is especially the case where the pH of the composition does not play an important role in the application method. If foliar application, for example, is considered, the pH of the solution may need to be adjusted in order that the composition has a suitable pH for foliar uptake. In such a case a basic compound or compounds may have to be added to the mixture.
Alternatively or additionally, the composition may also include one or more plant nutrients such as macro-nutrients and/or micro-nutrients.
The composition mixture may accordingly include a basic compound which increases the pH of the composition. The basic compound may comprise a compound including an alkali metal salt or an alkaline earth metal salt. In one embodiment of the invention it may comprise a potassium salt. The potassium salt may comprise K,CO; or KOH. twill be appreciated that the potassium from the potassium salt can also serve as a macro-nufrient.
The pH of the composition may be adjusted as required depending on factors such as the plants to be treated or the method of application of the ‘ plant treatment composition. If foliar application is contemplated, the pH , of the composition should be suitable for foliar uptake. Usually this is ata pH from about 5 to 7. Preferably the pH is from about 6 to 7. Most 5 preferably it is about 6.5. In the case of trunk injection or drench applications the pH should usually be between about 0.5 and about 9.
Preferably the pH is from about 4 to 8. Most preferably it is about 6.5.
A plant nutrient such as a source of nitrogen may also be added. The nutrient may comprise urea, ammonium nitrate, potassium nitrate, magnesium nitrate or calcium nitrate.
The composition may also include water. Water may be added in cases where a compound such as a basic compound and/or nutrient is added which is not soluble in the polar organic solvent, but which is soluble in water, or where such compound is added in such an amount that it does not fully dissolve in the organic solvent and where water is required to substantially fully solubilise the compound.
The volume percentage of water can vary greatly but ideally it may be at about 39.5%.
The plant treatment composition may also include a surfactant, especially in the case where an organic polar solvent and water are included in the , composition. The surfactant may be added to ensure that a monophasic solution forms.
The surfactant may comprise any suitable surfactant, and in one embodiment of the invention it may comprise propylene glycol.
It will be appreciated that the composition of the plant treatment composition is expressed in terms of the starting materials used in the composition. It will be appreciated that in certain cases the phosphorus compound, the polar organic solvent and other compounds of the mixture such as a basic compound or nutrients may react with each other to form reaction products and/or they may dissolve to form dissolved species. For example where the composition includes a mixture of phosphorous acid (HsPOs3); ethanol, potassium carbonate (K,CO3) and water, dissolved species of, KH,PO3, K;HPO;, as well as salts of the potassium and the ethanol may form.
A source of boron may also be added.
The composition may be buffered. Preferably an imidazole and hydrochloric acid buffer is added. . The plant treatment composition may comprise a fertiliser.
In a preferred embodiment of the invention the plant treatment composition may be used for treating plants against plant diseases.
Preferably the plant treatment composition comprises a fungicide.
Preferably it comprises a fungicide suitable for use against Oomycetes, preferably for use against Peronosporales, preferably for use against
Phytophthora, and Pythium and Plasmopara species.
According to another aspect of the present invention there is provided a method of preparing a plant treatment composition comprising the step of mixing together: - a phosphorus compound; and - an organic polar solvent.
Other compounds, in the amounts and ratios as indicated above may also : be added to the mixture.
According to another aspect of the present invention there is provided a plant treatment composition prepared by the method substantially as described hereinabove.
The invention also relates to the use of the plant treatment composition substantially as described hereinabove for treating plants or a locus, especially a locus where plants are cultivated or are to be cultivated.
Preferably the plant treatment composition is used as a fungicide.
Alternatively or additionally the composition may be used as a fertiliser.
The composition may be applied to the plants, for example by spraying the plants (preferably spraying the foliage of the plants), painting the stems or drenching their roots. Preferably the solution is injected into plants, and preferably into the stems of plants.
The invention also relates to a method of treating a plant or a locus comprising applying to the plant or locus the plant treatment composition substantially as described hereinabove.
The invention will now be further described by means of the following non- limiting examples:
Example 1 ) Composition with surfactant in the form of propylene glycol
Ethanol (95% ethanol, 5% methanol) in an amount of 200ml was introduced into a beaker. The ethanol was stirred and 505g of dry phosphorous acid (99% purity) was added to the ethanol. The solution was stirred until almost all the phosphorous acid dissolved.
Anhydrous potassium carbonate (99,5% purity) in an amount of 440g was slowly added to the solution in order to maintain the temperature below 65°C. The potassium carbonate did not fully dissolve. The mixture was thoroughly stirred and 395ml water was then slowly added thereto. This mixture was thoroughly stirred until there was no further effervescence.
Two layers formed.
Propylene glycol (surfactant) in an amount of 130ml was then added to the mixture under constant stirring. A green dye in the form of 0,005g
Hexacol Acid Green dissolved in 5ml of water was then added to provide a monophasic solution with a green colour.
The resultant solution had a pH of about 6.5 and a specific gravity of about
Claims (18)
1. A plant treatment composition formed by the mixture of - a phosphorus compound ; and - an organic polar solvent.
2. The composition of claim 1 which is a solution wherein the phosphorus compound is dissolved in the organic polar solvent.
3. The solution of claim 2 wherein the phosphorus compound comprises a compound selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhyposphorous acid, and salts thereof.
4. The solution of claim 2 wherein the organic polar solvent comprises an alcohol.
5. The solution of claim 2 wherein the phosphorus compound comprises phosphorous acid and the solvent comprises ethanol wherein the phosphorous acid is dissolved.
6. The solution of claim 2 which includes a basic compound which ' increases the pH of the solution.
7. The solution of claim 2 which includes a plant nutrient.
8. The solution of claim 2 which includes water.
9. The solution of claim 8 which includes a surfactant.
10. The solution of claim 9 wherein the surfactant comprises propylene glycol.
11. The plant treatment composition of any one of the preceding claims which is a fertiliser.
12. The plant treatment composition of any one of claims 1 to 10, which is a composition for treating plants against plant diseases. .
13. A method of preparing a plant treatment composition comprising the step of mixing together: - a phosphorus compound; and - an organic polar solvent.
‘
14. The use of a composition of any one of claims 1 to 10 for treating . plants or a locus.
15. The use of claim 14 wherein the composition is used as a fertiliser.
16. The use of claim 14 wherein the composition is used as a fungicide.
17. The use of any one of claims 14 to 16 wherein the composition is injected into plants.
18. A method of treating a plant or a locus comprising applying to the plant or locus the plant treatment composition substantially as described hereinabove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA200309364A ZA200309364B (en) | 2001-06-20 | 2003-12-02 | Plant treatment composition. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA200105038 | 2001-06-20 | ||
| ZA200309364A ZA200309364B (en) | 2001-06-20 | 2003-12-02 | Plant treatment composition. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200309364B true ZA200309364B (en) | 2004-09-28 |
Family
ID=34119274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200309364A ZA200309364B (en) | 2001-06-20 | 2003-12-02 | Plant treatment composition. |
Country Status (1)
| Country | Link |
|---|---|
| ZA (1) | ZA200309364B (en) |
-
2003
- 2003-12-02 ZA ZA200309364A patent/ZA200309364B/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210340074A1 (en) | Reaction products and methods for making and using the same | |
| US11148982B2 (en) | Reaction products and methods for making and using the same | |
| CN106365927B (en) | Composition containing N- (normal-butyl) thiophosphoryl triamide adduct and reaction product | |
| EP3575278A1 (en) | Liquid nitrogen fertilizer compositions and additives therefor | |
| CN110072827A (en) | Fertilizer composition containing acid resistance urease inhibitor adduct | |
| CN103360177A (en) | Water-soluble leaf fertilizer for pepper tree, and application thereof | |
| CA3063500A1 (en) | New method for fertilizing agricultural soil | |
| CN103396188A (en) | Water-soluble leaf fertilizer for tea tree and application of fertilizer | |
| CN114057522B (en) | Biological stimulin type liquid fertilizer containing double-effect slow-release nitrogen and preparation method thereof | |
| WO2019204163A1 (en) | Liquid nitrogen fertilizer compositions and additives therefore | |
| ZA200309364B (en) | Plant treatment composition. | |
| CN106083283A (en) | A kind of containing ureaformaldehyde slow-release potassium fertilizer and preparation method thereof | |
| JP5805742B2 (en) | Slow-acting liquid fertilizer and method for producing the same | |
| US6541421B1 (en) | Buffered phosphorus containing solution | |
| US20040224845A1 (en) | Plant treatment composition | |
| AU2002319833B2 (en) | Plant treatment composition | |
| CA1135524A (en) | Liquid foliar fertilizer compositions containing water-soluble urea-formaldehyde products | |
| US20220274897A1 (en) | Sugar alcohol-based micronutrient dispersion | |
| EP3941890A1 (en) | The use of an oil-based composition for reducing ammonia volatilization in urea-based fertilizer application | |
| AU2002319833A1 (en) | Plant treatment composition | |
| JP2021529146A (en) | Emulsion for processing urea-containing fertilizer | |
| US5541152A (en) | Herbicide and fertilizer composition and method of using same | |
| RU2206553C2 (en) | Humatized ammonium nitrate and method for its preparing | |
| CA2941176A1 (en) | An agricultural composition and methods for making and using the same | |
| EP4359368A1 (en) | Combination of a pyrazole and a thiophosphoric triamide |