NZ270128A - Superphosphate containing borate compound(s) for the control of hieracium in pasture land - Google Patents
Superphosphate containing borate compound(s) for the control of hieracium in pasture landInfo
- Publication number
- NZ270128A NZ270128A NZ27012894A NZ27012894A NZ270128A NZ 270128 A NZ270128 A NZ 270128A NZ 27012894 A NZ27012894 A NZ 27012894A NZ 27012894 A NZ27012894 A NZ 27012894A NZ 270128 A NZ270128 A NZ 270128A
- Authority
- NZ
- New Zealand
- Prior art keywords
- composition
- pasture
- boron
- hieracium
- borate compound
- Prior art date
Links
- 241001473402 Hieracium Species 0.000 title claims description 25
- -1 borate compound Chemical class 0.000 title claims description 15
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 title claims description 15
- 239000002426 superphosphate Substances 0.000 title claims description 15
- 239000000203 mixture Substances 0.000 claims description 33
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 25
- 229910052796 boron Inorganic materials 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 18
- STNGULMWFPMOCE-UHFFFAOYSA-N ethyl 4-butyl-3,5-dimethyl-1h-pyrrole-2-carboxylate Chemical compound CCCCC1=C(C)NC(C(=O)OCC)=C1C STNGULMWFPMOCE-UHFFFAOYSA-N 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 11
- 239000003337 fertilizer Substances 0.000 claims description 10
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 8
- 231100000331 toxic Toxicity 0.000 claims description 7
- 230000002588 toxic effect Effects 0.000 claims description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 235000019738 Limestone Nutrition 0.000 claims description 5
- 241000209504 Poaceae Species 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical class [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims description 5
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 5
- 241000196324 Embryophyta Species 0.000 claims description 4
- 239000001103 potassium chloride Substances 0.000 claims description 4
- 235000011164 potassium chloride Nutrition 0.000 claims description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 4
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 4
- 239000001120 potassium sulphate Substances 0.000 claims description 4
- 235000011151 potassium sulphates Nutrition 0.000 claims description 4
- 235000015393 sodium molybdate Nutrition 0.000 claims description 4
- 239000011684 sodium molybdate Substances 0.000 claims description 4
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 4
- 238000011282 treatment Methods 0.000 claims description 4
- 150000001639 boron compounds Chemical class 0.000 claims description 3
- 241000894007 species Species 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- 238000005553 drilling Methods 0.000 claims 1
- 230000007774 longterm Effects 0.000 claims 1
- 238000009472 formulation Methods 0.000 description 10
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000007792 addition Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000009331 sowing Methods 0.000 description 3
- 208000007256 Nevus Diseases 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000243177 Pilosella officinarum Species 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 235000021374 legumes Nutrition 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Fertilizers (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
New Zealand Paient Spedficaiion for Paient Number £701 £8
270128
Priority Date(s):
Complete Specification Filed:
Olass:
Publication Date:....2..8..MAY,.199B. P.O. Journal No:
NEW ZEALAND PATENTS ACT, 1953 COMPLETE SPECIFICATION
Patent of Addition No.: 242541 Date: 29 April 1992
N-Z. PATENT OFFICE
FEB 1995
RECEIVED
"Compositions for Hieracium Affected Pasture"
We, SOUTHFERT CO-OPERATIVE LIMITED, a duly incorporated New Zealand company of Bluff Road, Awarua, Invercargill, New Zealand, hereby declare the invention for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:-
27 01k:
In our New Zealand Patent Specification No.242541 (the full content of which is included herein by reference) there is disclosed and claimed methods of controlling the growth of hieracium in pasture. The method involved the application of a source of boron to the pasture land to increase the boron soil level available for pasture growth to a level of substantially 3ppm by weight or greater but below levels that are toxic to the pasture grasses. The method preferably also includes applying the boron providing compound to the pasture land in conjunction with at least one fertilizing element
The method of the invention of New Zealand Patent Specification No.242541 preferably involves a range of compositions useful in the performance of the most preferred form of the method.
The present invention relates to improvement in and additions to the invention of our New Zealand Patent No.242541.
In a first aspect the present invention consists in a composition useful for the control of hieracium in pasture land comprising by weight from
% to 40% borate compound(s) when expressed as sodium tetraborate pentahydrate,
45% to 95% superphosphate,
0% to 50% elemental sulphur,
0% to 0.2% molybdate salt when expressed as sodium molybdate,
0% to 50% potassium salt when expressed as potassium chloride or potassium sulphate,
0% to 50% limestone, and 0% to 50% magnesium superphosphate,
the borate compound(s) having been wet mixed with the fertiliser elements.
Preferably the borate compound(s) is present in the range of from 15 to 25% when expressed as sodium tetraborate pentahydrate.
Preferably any one or more of the elemental sulphur, molybdate sale, potassium salt, limestone and magnesium superphosphate is optional.
In yet a further aspect the present invention consists in a composition comprising (by weight)
from 15% to 25% (and preferably about 20%) borate compound(s) when expressed as sodium tetraborate pentahydrate,
about 70% superphosphate and about 10% elemental sulphur, the borate compound(s) having been wet mixed with the fertiliser elements.
In stQl a further aspect the present invention consists in a method of controlling hieracium in pasture which comprises applying to such pasture a sufficient quantity of a composition in accordance with the present invention so as to achieve an effect substantially as herein after described.
Preferably said composition is applied by ground spreading.
In another preferred form said composition is applied by aerial spreading.
Preferably the application is at "preferred" sowing rate of about 250kg/ha.
In a further aspect the invention is a method of controlling hieracium in pasture which comprises applying to such pasture a sufficient quantity of a composition as claimed in any preceding claim so as to the boron level available for pasture growth to a level of 3ppm by weight or greater but below levels that are toxic to the pasture grasses.
Preferably the rate of application is of the order of about 250kg/ha.
Preferably the application is in one or both of autumn and early winter.
In a further aspect the invention is a method of controlling hieracium in pasture in a region having an average rainfall of over 600 mm which comprises applying to such pasture in the period February to June inclusive a sufficient quality of a composition of any one of claims 1 to 8 to achieve a boron application rate of about 7.5 kg/ha or above but below levels that are toxic to the pasture grasses.
Preferably the composition is spread by ground operated bulk spreader or an 5 aircraft (fixed or rotary wing).
The present invention arises from a discovery as a result of further research that higher application rates of borate compound(s) are required to give similar responses in terms of hieracium control to earlier trials over a period of time when there has been a significantly increased rainfall over that precipitated during the trial work referred to in the complete specification of our New Zealand Letters Patent 242541.
As a result the new preferred formulations will have greater application to a wider range of climatic zones in terms of annual rain fall than did the preferred formulations as disclosed in complete specification of Letters Patent 242541.
270128
The preferred method of application of the new formulation is by ground spreading. Our research has shown this method to be the most reliable and accurate at placing concentrated borate containing formulations. Evenness of coverage is important in terms reducing maximum numbers of hieracium plants. The control of application rates is important in order to prevent the risk of "toxic" soil boron levels ie. soil boron levels that will reduce the competitive ability of the plant species other than that of hieracium.
However due to the wide variations of contours within hieracium affected pasture lands, it will at time, be necessary to apply such formulations using other methods such as aerial sowing using fixed wing aircraft or helicopters.
Possible formulation ranges Example 1
By Weight
% sodium tetraborate pentahydrate 70% superphosphate 10% elemental sulphur
Example 2
By Weight
% to 40% sodium tetraborate pentahydrate,
45% to 95% superphosphate,
0% to 50% elemental sulphur,
0% to 0.2% molybdate salt when expressed as sodium molybdate, 0% to 50% potassium salt, when expressed as potassium chloride or potassium sulphate,
0% to 50% limestone, and 0% to 50% magnesium superphosphate but with the proviso that in relation the proportion comprising elemental sulphur and any superphosphate inclusions the boron compound comprises about 20% (eg. from 15% to 25%).
The preferred formulation has been stated as containing borate compound(s), superphosphate and elemental sulphur. It will at times however, due to differing fertility requirements of individual sites, be necessary to add other fertilising elements at various addition rates, either individually or in various combinations, to the
270121
preferred formulation. Such additional fertilising elements could include sodium molybdate, various forms of potassium salts (eg. potassium chloride, potassium sulphate), calcium and magnesium.
The preferred boron compound is sodium tetraborate pentahydrate. Others include those in the proprietary products SOLUBOR™ and URLEXTTE™
Each of these fertilising elements may be required on some sites in order to enhance the competitive nature of pasture land species (eg. legumes) other than hieracium.
Preferably the sowing rate, of the above mixture is 250kg/ha.
Preferably the method of application of the preferred formulation or any other formulation would be "ground spread by means of a ground operated bulk spreader". An alternative to this would be aerial application by fixed wing aircraft or helicopter. Results and discnssion Initial Results:
Out of the 30 original treatments (applied in late 1990) the application of boron in the form of Fertiliser Borate FB48 (see parent patent) was the only one to retard the growth habit of hieracium. By the spring of 1991 photographic evidence showed the above ground portion of hieracium within the boron plots to be totally desiccated. No other treatment had this effect Application Rates:
The direct effect on the hieracium in each plot was consistent with the application rate of boron (Tabl$ 1). There was no superior effect on the control of hieracium by adding basal fertilisers.
Table 1 Effect of boron application rate as a percentage of hieracium piloseUa ground cover on two sites in Central Otago - Little Valley and Nevis.
Application rate of Fertiliser Borate FB48 (kg/ha)
0
12.5
50
100
Little Valley
80
70
60
40
Nevis
70
60
50
270
A wide variely of application rates have been used from 1-37 kg/ha of elemental boron. In the drier climates (during dry seasons) 4 kg/ha of elemental boron (25 kg/ha of Fertiliser Borate FB48 - sodium tetraborate pentahydrate) gave reasonable control (both initially and ongoing). As rainfall increases, so does the requirement for boron (Table 2). The trials show that in 600-1000 mm rainfall areas 7.5 kg/ha of elemental boron (50 kg/ha of Fertiliser Borate FB48 will give reasonable control Table 2 Effect of boron application rate as a percentage of hieracium pUoseUa ground cover at a low rainfall site (275 mm/annum) and a high rainfall site (1750 mm/annum).
-
Application rate of Fertiliser Borate FB48 (kg/ha)
0
50 100
Low Rainfall
80
60
40 20
High Rainfall
70
70
60 40
Timing;
Duplication of the various applications rates have been carried out in all four seasons. The recommendation is that boron should be applied during the months of February to May. Results from spring applications have generally been poor (Table 3). Tost flowering' treatment is most effective.
Table 3 Effect of timing of application of 50 kg/ha of Fertiliser Borate FB48 as a
£
percentage of hieracium pUoseUa ground cover.
% cover of hieracium pilosella
Time of Application
Pre-treatment
6 mths
12 mths
Spring
80
60
70
Autumn
80
Boron Toxicity:
It was assumed that the rate of boron required to control hieracium would also cause toxicity problems for other plants, but hieracium appears to show far less
Claims (13)
1. A composition useful for the control of hieracium in pasture land comprising by weight from 5% to 40% borate compound(s) when expressed as sodium tetraborate pentahydrate, 45% to 95% superphosphate, 0%to50% elemental sulphur, 0% to 0.2% molybdate salt when expressed as sodium molybdate, 0% to 50% potassium salt when expressed as potassium chloride or potassium sulphate, 0% to 50% limestone, and 0%to50% magnesium superphosphate, the borate compound(s) having been wet mixed with the fertiliser elements, but excluding any composition expressly disclosed or claimed in New Zealand Patent Specification No. 242541.
2. A composition of claim 1 wherein the boron compounds(s) is sodium tetraborate pentahydrate.
3. A composition of claim 1 or claim 2 wherein the borate compound(s) is present in the range of from 15% to 25% by weight when expressed as sodium tetraborate pentahydrate in relation to the proportion comprising the elemental sulphur and any superphosphate inclusions.
4. A composition of claim 1 or 2 wherein any one or more of the elemental sulphur, molybdate salt, potassium salt, limestone and magnesium superphosphate is optional.
5. A composition comprising (by weight) from 15% to 25% borate compound(s) when expressed as sodium tetraborate pentahydrate, about 70% superphosphate and about 10% elemental sulphur, the borate compound(s) having been wet mixed with the fertiliser elements, but excluding any composition expressly disc claimed in New Zealand Patent Specification No. 242541. 270128 -9-
6. A composition of claim 5 wherein said borate compound(s) are about 20% by weight when expressed as sodium tetraborate pentahydrate.
7. A composition of claim 5 or 6 wherein the borate compound(s) includes or is sodium tetraborate pentahydrate.
8. A composition of any one of the preceding claims substantially as hereinbefore described.
9. A method of controlling hieracium in pasture which comprises applying to such pasture a sufficient quantity of a composition as claimed in any one of die preceding claims so as to increase the boron level available for pasture growth to a level of 3ppm by weight or greater but below levels that are toxic to the pasture grasses.
10. A method of claim 9 wherein the rate of application is of the order of about 250kg/ha.
11. A method of claim 9 or 10 wherein the application is in one or both of autumn and early winter.
12. A method of controlling hieracium in pasture in a region having an average rainfall of over 600 mm which comprises applying to such pasture in the period February to June inclusive a sufficient quantity of a composition of any one of claims 1 to 8 to achieve a boron application rate of about 7.5 kg/ha or above (when expressed as elemental boron) but below levels that are toxic to the pasture grasses.
13. A method of any one of claims 9 to 12 when spread by ground operated bulk spreader or an aircraft (fixed or rotary wing). DATED THIS 2^ DAY OF fek Mb & AGENTSTerfiHE APPUCANT
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ27012894A NZ270128A (en) | 1994-12-13 | 1994-12-13 | Superphosphate containing borate compound(s) for the control of hieracium in pasture land |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ27012894A NZ270128A (en) | 1994-12-13 | 1994-12-13 | Superphosphate containing borate compound(s) for the control of hieracium in pasture land |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NZ270128A true NZ270128A (en) | 1996-05-28 |
Family
ID=19925085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ27012894A NZ270128A (en) | 1994-12-13 | 1994-12-13 | Superphosphate containing borate compound(s) for the control of hieracium in pasture land |
Country Status (1)
| Country | Link |
|---|---|
| NZ (1) | NZ270128A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014113475A1 (en) * | 2013-01-15 | 2014-07-24 | Stuart Jennings | Low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species |
| US10251399B2 (en) | 2013-01-15 | 2019-04-09 | Stuart Jennings | Low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species |
-
1994
- 1994-12-13 NZ NZ27012894A patent/NZ270128A/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014113475A1 (en) * | 2013-01-15 | 2014-07-24 | Stuart Jennings | Low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species |
| US8835355B2 (en) | 2013-01-15 | 2014-09-16 | Stuart Jennings | Low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species |
| US9096478B2 (en) | 2013-01-15 | 2015-08-04 | Stuart Jennings | Low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species |
| US9775357B2 (en) | 2013-01-15 | 2017-10-03 | Stuart Jennings | Low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species |
| US10251399B2 (en) | 2013-01-15 | 2019-04-09 | Stuart Jennings | Low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species |
| US10681913B2 (en) | 2013-01-15 | 2020-06-16 | Stuart Jennings | Foliar applications of low-concentration phytotoxic micronutrient compounds for selective control of invasive plant species |
| US11357232B2 (en) | 2013-01-15 | 2022-06-14 | Edaphix, LLC | Methods of improving soil health, growth and vigor of perennial grass communities |
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