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WO2013019121A1 - Améliorations des compositions d'engrais ou les concernant - Google Patents

Améliorations des compositions d'engrais ou les concernant Download PDF

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Publication number
WO2013019121A1
WO2013019121A1 PCT/NZ2012/000102 NZ2012000102W WO2013019121A1 WO 2013019121 A1 WO2013019121 A1 WO 2013019121A1 NZ 2012000102 W NZ2012000102 W NZ 2012000102W WO 2013019121 A1 WO2013019121 A1 WO 2013019121A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixture
oil
fertiliser
wax
plant based
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/NZ2012/000102
Other languages
English (en)
Inventor
Michael Wesley Brown
Murray Selwin Zander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SOUTH STAR FERTILIZERS Ltd
Original Assignee
SOUTH STAR FERTILIZERS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SOUTH STAR FERTILIZERS Ltd filed Critical SOUTH STAR FERTILIZERS Ltd
Priority to AU2012290771A priority Critical patent/AU2012290771B2/en
Publication of WO2013019121A1 publication Critical patent/WO2013019121A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
    • C09D191/06—Waxes
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • C05G5/38—Layered or coated, e.g. dust-preventing coatings layered or coated with wax or resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D193/00—Coating compositions based on natural resins; Coating compositions based on derivatives thereof

Definitions

  • the present invention relates to improvements in and relating to fertiliser compositions.
  • the present invention relates to coated fertiliser compositions.
  • Urea is a popular fertiliser due to its high nitrogen content which can be easily broken down into plant assimilable ammonia and nitrate by soil bacteria.
  • urea could be formulated to additionally provide additional nutrients and/or trace elements to a pasture.
  • urea could be formulated to be capable of being blended with freshly acidulated phosphate fertilisers so as to avoid double salt formation. It is an object of the present invention to address the foregoing problems or at least to provide the public with a useful choice.
  • 'fertiliser' refers to any substance added to soil, land or other plant growth medium in order to increase fertility.
  • the terms 'granule' and 'chip' as used herein are used interchangeably and refer to a small compact particle of substance.
  • the particle will generally be of a size in the order of substantially between 1 mm -10mm and most preferably between 2mm- 5mm.
  • the granule/chip may be naturally occurring or may be fashioned by human manipulation.
  • the term 'mineral' as used herein refers to a solid naturally occurring substance which is beneficial to a plant or animal life.
  • 'wax' refers to a synthetic or naturally occurring compound which is generally malleable at fairly wide band of room temperatures (i.e. around 5°C - 45°C) and liquid above 45°C and insoluble in water but soluble in organic non-polar solvents.
  • 'resin' refers to any component of a liquid which can harden (solidify) into a lacquer or enamel like finish.
  • plant based oil' refers to: a) a lipid material produced by a plant which is liquid at room
  • lipid material which is chemically similar to, or is derived from, a lipid material produced by a plant which is liquid at room temperatures of around 5°C - 45°C and is viscous compared to water;
  • lipid based material in a) or b) above which includes one or more additives yet remains liquid at room temperatures of around 5°C - 45°C and is viscous compared to water.
  • PEARLTM oil which for the purposes of this specification is considered to be a plant based oil notwithstanding any small wax content therein. This is to be contrasted to PEARL USTM oil which contains a much higher wax content and thus is not considered a plant based oil but is instead considered a mixture of a plant based oil and a wax.
  • the term 'derived' as used herein refers to something which is formed or developed from something else.
  • 'trace elements' refers to a chemical element found in small quantities in plants and/or the earth and which is used by organisms, including plants and animals, and is essential or beneficial, to their physiology.
  • 'assimilable' refers to a substance which is able to be absorbed by a plant or animal.
  • a fertiliser composition which includes a core comprising a fertliser granule/chip, or mineral granule/chip, is the core being coated with a first layer comprising a mixture of a plant based oil and a wax or resin, the first layer is then itself coated with at least one further layer comprising a powdered trace element or mixture of powdered trace elements.
  • a fertiliser composition which includes a core comprising a fertliser or mineral granule/chip which is coated with a first layer comprising a mixture of a plant based oil in the form of PEARLTM oil and wax, the first layer is itself coated with at least one further layer comprising a powdered trace element or mixture of powdered trace elements.
  • a fertiliser composition which includes a core comprising a fertliser or mineral granule/chip which is coated with a first layer comprising a mixture of a plant based oil in the form of boiled linseed oil and wax , the first layer is itself coated with at least one further layer comprising a powdered trace element or mixture of powdered trace elements.
  • a fertiliser composition which includes a core comprising a fertilizer or mineral granule/chip wherein the core is coated with: a layer comprising a mixture of a plant based oil and wax/resin; a powdered trace element or a mixture of powdered trace elements; and one or more further alternating layers of: a) an acrylic emulsion and plant based oil; and b) a powdered trace element, or a mixture of powdered trace elements.
  • a fifth aspect there is provided a use of maleic acid as a setting agent in the manufacture of a multiple coated fertiliser composition using substantially non-aqueous liquid coating materials.
  • Linseed can set hard but need to always use maleic acid to help it set (i.e. shortens the time period for the oil to set).
  • an extended release coating for fertiliser composition which includes a core comprising the steps of: a) adding wax/resin to a plant based oil; b) heating the mixture from step a); and c) stirring the mixture until substantially homogenous.
  • an extended release coating for a core of a fertiliser composition which includes: a) a mixture of a wax, or resin, and plant based oil, which is substantially homogenous.
  • an extended release fertiliser composition which includes a core including a fertiliser or mineral granule comprising the steps of: a) adding a homogenous mixture of: a plant based oil; and a wax or resin; to a quantity of fertiliser granules or chips; b) mixing the resulting mixture; c) adding powdered trace element(s) to the mixture; and d) mixing the resulting mixture until the coated granules are free flowing.
  • a ninth aspect there is provided a method substantially as described above wherein the method comprises the additional steps of: e) adding: an acrylic emulsion; or a homogenous mixture of a plant based oil and wax or resin; to fertiliser granules or chips from step d) above, or step h) below, as appropriate; f) mixing the resulting mixture; g) adding powdered trace element(s) to the mixture; h) mixing the resulting mixture until the coated granules are free flowing; and i) repeating steps e)-h) until described number of layers has been achieved.
  • a fertiliser blend which includes a quantity of standard urea and a quantity of an extended release composition substantially as described above.
  • the inventor has found that changing the type of, or relative amount of, wax/resin used in the mixture can alter the viscosity of the mixture.
  • the wax/resin increases the tackiness of the oil which helps the oil/wax mixture, or oil/resin mixture, adhere to the granule as well as bind the powdered trace elements thereto.
  • Figure 1 shows a cross sectional schematic view of a fertiliser composition in accordance with one preferred embodiment of the present invention
  • Figure 2 shows a release profile (in minutes) of various coated fertiliser
  • Figure 3 shows the release profile (in hours) of one preferred embodiment of coated fertiliser composition which is detailed in Figure 2;
  • Figure 4 shows a cross sectional schematic view of a fertiliser composition in accordance with another preferred embodiment of the present invention.
  • Galoryl ATH 709 wax 1g is added to 19g of PEARLTM oil and is mixed and warmed to approx 40 - 50°C.
  • the resulting oil/wax mixture is fluid at ambient temperatures (i.e. 10 - 30°C).
  • Galoryl ATH 709 wax is added to 18g of PEARLTM oil and is mixed and warmed to approx 40 - 50°C.
  • the resulting oil/wax mixture is viscous at ambient temperatures (i.e. 10 - 30°C).
  • Figure 1 shows a urea core (1 ) which is coated with a W03/2 layer (2) and a further outer layer of MgO (3).
  • Examples 5 -10 below were made using the following oil/resin mixtures. Mixtures of Pearl Oil + C9 Petroleum Resin (PR) RP1 5% Oil/Resin Add 1g resin (supplied by Connell Bros Company Australasia) to 19g Pearl oil, stir and heat the mixture until homogeneous.
  • PR Petroleum Resin
  • Oil/Resin Add 1g resin (supplied by Connell Bros Company Australasia) to 19g Pearl oil, stir and heat the mixture until homogeneous.
  • Example 10 Extended Release Fertiliser Composition with a Plurality of Layers Surrounding Core.
  • Figure 4 shows a urea core (1 ) which is coated with PEARLTM oil and wax (2) as per Example 10 and which has MgO layer (3).
  • the MgO layer (3) is then coated with a layer (4) of PRIMALTM - E-1764K Acrylic Emulsion Polymer as per Example 1 1 to which a final layer (5) of Si0 2 is adhered.
  • Example 11 Blend including Multi-layered Extended Release Fertiliser Composition
  • PEARL USTM oil 20g of PEARL USTM oil is warmed to approx 40°C.
  • the PEARL USTM oil is viscous at ambient temperatures (i.e. 10 - 30°C). Step 2.
  • BLO Boiled Linseed Oil
  • the resulting coated granules have a total MgO of 9.5% and a total Oil Mix of 4.8%.
  • Dissolution Method employed to yield the results in Figure 2 was as follows: 1. Place 150 ml water(20°C) into a 250ml beaker
  • Figure 2 clearly shows that all coated urea dissolved at a slower rate than standard urea (i.e. uncoated). In particular ⁇ /4 had the most pronounced extended release characteristic of all the coated formulations tested.
  • Figure 3 shows - the release profile of standard urea to coated urea ⁇ /4 over a 24 hour period. As can be seen ⁇ /4 coated urea extends the release of urea to up around 5 hours compared to a couple of minutes for uncoated urea.
  • the wax may be any wax.
  • the wax may be a petroleum wax.
  • the wax may be paraffin wax.
  • the wax may be palm wax.
  • the wax may be Galoryl ATH 709 as supplied by Lake Industries, Australia.
  • the resin may be any resin.
  • the resin may be resin110C which has a melting point of 1 10°C.
  • the resin may be C9 petroleum resin as supplied by Connell Bros Company Australasia Ltd.
  • the resin may be a plant resin.
  • the inventors have found depending on the type of wax added to the plant based oil the resulting mixture may need to be heated to around 40 -50°C so as to be liquid when being added to the granule/chip. As the addition of wax to the plant based oil can cause the resulting mixture to become solid at room temperature.
  • One such wax with these properties is paraffin wax.
  • the plant based oil may be any plant oil provided it doesn't react with urea or other acidulated fertilisers.
  • the oil may be a vegetable based oil. In some preferred embodiments the oil may be a naturally occurring oil. In one preferred embodiment the oil may be boiled linseed oil. In some preferred embodiments the oil may be a plant based oil. In further preferred embodiments the plant based oil may include one or more further additives.
  • the plant based oil composition may be PEARLTM oil which is manufactured and supplied by Lake International Technologies (Pty) Limited.
  • the information sheet states PEARLTM oil is vegetable oil based polymer which is 100% biodegradeable and is manufactured from a highly oxidised vegetable oil which is reacted with a blend of various other, non-oxidised vegetable oils, surfactants and natural waxes, to form a stable polymer that sets after application.
  • PEARLTM oil product properties include:
  • the trace elements may be any trace elements it is desired to deliver to a plant. In some cases the trace elements may benefit the plant (e.g. for increased growth or other desired physiological response) and in other cases the trace elements may be for delivery to an animal via the animal's ingestion of a plant.
  • suitable powdered trace elements for the coating include plant and/or animal assimilable forms of:
  • trace elements are to enhance the value of the plant to an animal.
  • the inclusion of selenium in a plant increases the levels of selenium within an animal which ingests said plant.
  • the powdered trace element may be in the form of magnesium oxide.
  • the powdered trace element may be in the form of silicon dioxide.
  • the minerals may be any minerals it is desired to deliver to a plant. In some cases whilst the minerals may primarily benefit the plant (e.g. for increased growth or other desired physiological response) the minerals may also be beneficial to an animal upon delivery thereto via the animal's ingestion of a plant.
  • suitable minerals for the core include plant assimilable forms of:
  • the purpose of the minerals is generally to improve the physiology of a plant, or in some cases plant and/or animal which assimilates the mineral.
  • Potassium Sulphate • Potash e.g. potassium carbonate or potassium hydrochloride Again this list is not intended to be exhaustive.
  • the acrylic emulsion used when creating a plurality of layers around the granule/chip may be any suitable stable emulsion having regard to the composition and its intended use.
  • the acrylic emulsion may be PRIMALTM - E-1764K Acrylic Emulsion Polymer from ROHM HAAS.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Pest Control & Pesticides (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Fertilizers (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Cette invention concerne une composition d'engrais qui comprend un matériau formant cœur comprenant un granulé/copeau d'engrais, ou un granulé/copeau minéral, le matériau formant cœur étant revêtu d'une première couche comprenant un mélange d'huile végétale et de cire ou de résine, ladite première couche étant ensuite elle-même revêtue d'au moins une couche supplémentaire comprenant un élément pulvérulent à l'état de traces ou un mélange d'éléments pulvérulents à l'état de traces.
PCT/NZ2012/000102 2011-08-01 2012-06-15 Améliorations des compositions d'engrais ou les concernant Ceased WO2013019121A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2012290771A AU2012290771B2 (en) 2011-08-01 2012-06-15 Improvements in and relating to fertiliser compositions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ594354 2011-08-01
NZ59435411 2011-08-01

Publications (1)

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WO2013019121A1 true WO2013019121A1 (fr) 2013-02-07

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WO (1) WO2013019121A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104591910A (zh) * 2015-02-11 2015-05-06 江苏宏洋肥力特生物科技有限公司 含微量元素的缓释大量元素水溶性肥料颗粒
WO2016039645A1 (fr) * 2014-09-12 2016-03-17 South Star Fertilizers Limited Engrais enrobé d'éthoxylate d'alcool linéaire et éventuellement d'huile végétale brute
WO2017013573A1 (fr) * 2015-07-20 2017-01-26 Sabic Global Technologies B.V. Composition d'engrais et procédés de fabrication et d'utilisation de cette dernière
DE102015012380A1 (de) 2015-09-21 2017-03-23 Ask Chemicals Gmbh Beschichtetes Kernteilchen und Verfahren zur Herstellung desselben
US10640430B2 (en) 2014-01-31 2020-05-05 Saudi Basic Industries Corporation Fertilizer capsule comprising one or more cores and method of making same
US10865159B2 (en) 2015-11-16 2020-12-15 Sabic Global Technologies B.V. Methods of manufacture for coated granular fertilizers
US11021409B2 (en) 2017-08-09 2021-06-01 Sabic Global Technologies B.V. Extruded fertilizer granules with urease and/or nitrification inhibitors
US11104618B2 (en) 2015-07-20 2021-08-31 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US11124463B2 (en) 2015-11-16 2021-09-21 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses thereof
US11306037B2 (en) 2017-04-19 2022-04-19 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification separated within the same particle
US11345645B2 (en) 2017-04-20 2022-05-31 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with embedded powder composition
US11358908B2 (en) 2017-04-19 2022-06-14 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification inhibitor in separate particles
US11401218B2 (en) 2014-05-05 2022-08-02 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses
US11806689B2 (en) 2016-02-08 2023-11-07 Sabic Global Technologies B.V. Method of making a fertilizer seed core

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259482A (en) * 1965-10-14 1966-07-05 Archer Daniels Midland Co Slow release fertilizer with a plurality of epoxy/polyester resin coatings
US4657576A (en) * 1984-11-16 1987-04-14 Sierra Chemical Company Granular fertilizer composition having controlled release and process for the preparation thereof
US5310785A (en) * 1991-06-26 1994-05-10 Central Glass Company, Limited Coating composition and method of coating granular fertilizer with same
US5603745A (en) * 1994-06-24 1997-02-18 Norsk Hydro A.S Agricultural composition and conditioning agent for reducing hygroscopicity and dust formation of fertilizers
US20110126602A1 (en) * 2008-05-30 2011-06-02 Shandong Kingenta Ecological Engineering Co., Ltd. Emulsion polymer coating agent, coated controlled-release fertilizer and preparation thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259482A (en) * 1965-10-14 1966-07-05 Archer Daniels Midland Co Slow release fertilizer with a plurality of epoxy/polyester resin coatings
US4657576A (en) * 1984-11-16 1987-04-14 Sierra Chemical Company Granular fertilizer composition having controlled release and process for the preparation thereof
US5310785A (en) * 1991-06-26 1994-05-10 Central Glass Company, Limited Coating composition and method of coating granular fertilizer with same
US5603745A (en) * 1994-06-24 1997-02-18 Norsk Hydro A.S Agricultural composition and conditioning agent for reducing hygroscopicity and dust formation of fertilizers
US20110126602A1 (en) * 2008-05-30 2011-06-02 Shandong Kingenta Ecological Engineering Co., Ltd. Emulsion polymer coating agent, coated controlled-release fertilizer and preparation thereof

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10640430B2 (en) 2014-01-31 2020-05-05 Saudi Basic Industries Corporation Fertilizer capsule comprising one or more cores and method of making same
US11401218B2 (en) 2014-05-05 2022-08-02 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses
WO2016039645A1 (fr) * 2014-09-12 2016-03-17 South Star Fertilizers Limited Engrais enrobé d'éthoxylate d'alcool linéaire et éventuellement d'huile végétale brute
CN104591910A (zh) * 2015-02-11 2015-05-06 江苏宏洋肥力特生物科技有限公司 含微量元素的缓释大量元素水溶性肥料颗粒
US11104618B2 (en) 2015-07-20 2021-08-31 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
WO2017013573A1 (fr) * 2015-07-20 2017-01-26 Sabic Global Technologies B.V. Composition d'engrais et procédés de fabrication et d'utilisation de cette dernière
US10689306B2 (en) 2015-07-20 2020-06-23 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
DE102015012380A1 (de) 2015-09-21 2017-03-23 Ask Chemicals Gmbh Beschichtetes Kernteilchen und Verfahren zur Herstellung desselben
US10865159B2 (en) 2015-11-16 2020-12-15 Sabic Global Technologies B.V. Methods of manufacture for coated granular fertilizers
US12234197B1 (en) 2015-11-16 2025-02-25 SABIC Agri-Nutrients Company Coated granular fertilizers, methods of manufacture thereof, and uses thereof
US11124463B2 (en) 2015-11-16 2021-09-21 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses thereof
US11806689B2 (en) 2016-02-08 2023-11-07 Sabic Global Technologies B.V. Method of making a fertilizer seed core
US11802097B2 (en) 2017-04-19 2023-10-31 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification separated within the same particle
US11358908B2 (en) 2017-04-19 2022-06-14 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification inhibitor in separate particles
US11306037B2 (en) 2017-04-19 2022-04-19 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with urease inhibitor and nitrification separated within the same particle
US12006273B2 (en) 2017-04-19 2024-06-11 SABIC Agri-Nutrients Company Enhanced efficiency fertilizer with urease inhibitor and nitrification inhibitor in separate particles
US11345645B2 (en) 2017-04-20 2022-05-31 Sabic Global Technologies B.V. Enhanced efficiency fertilizer with embedded powder composition
US11021409B2 (en) 2017-08-09 2021-06-01 Sabic Global Technologies B.V. Extruded fertilizer granules with urease and/or nitrification inhibitors

Also Published As

Publication number Publication date
AU2012290771B2 (en) 2013-09-19
AU2012290771A1 (en) 2013-03-14

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