WO2004002921A1 - Fertilisation de sols - Google Patents

Fertilisation de sols Download PDF

Info

Publication number
WO2004002921A1
WO2004002921A1 PCT/AU2003/000836 AU0300836W WO2004002921A1 WO 2004002921 A1 WO2004002921 A1 WO 2004002921A1 AU 0300836 W AU0300836 W AU 0300836W WO 2004002921 A1 WO2004002921 A1 WO 2004002921A1
Authority
WO
WIPO (PCT)
Prior art keywords
fertiliser
humic acids
solid
humic
fertiliser composition
Prior art date
Application number
PCT/AU2003/000836
Other languages
English (en)
Inventor
Gary Murdoch-Brown
Original Assignee
Ecotech (Aust) Pty 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 Ecotech (Aust) Pty Ltd filed Critical Ecotech (Aust) Pty Ltd
Priority to AU2003238563A priority Critical patent/AU2003238563B2/en
Publication of WO2004002921A1 publication Critical patent/WO2004002921A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • 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

Definitions

  • the present invention relates to the fertilisation of soil.
  • the present invention relates to fertilisers and methods of manufacturing fertilisers whereby the fertilisers increase the use of the applied nutrients by crops farmed in the soil.
  • fertilisers are typically applied to soils in quantities significantly in excess of the amounts required to promote plant growth to allow for these losses. Fertilisers leached from such heavily fertilised soils have been found to cause a number of environmental problems, including the promotion of growth of organisms such as algae in waterways and changes to the respective growth patterns of indigenous and introduced species, often leading to the proliferation of introduced species at the expense of indigenous species.
  • humic acids into a fertiliser composition the release of nutrients to the soil from the fertiliser is controlled and a useful fertiliser composition may be produced that overcomes or at least ameliorates one or more of the disadvantages described above, or at least provides the consumer with a useful or commercial choice.
  • a solid fertiliser composition comprising a fertiliser and humic acids.
  • Human acids is a general term for a variety of acids of the type similar to the specific acid referred to by organic chemists as “humic acid” and the term will be understood by persons skilled in the art. Persons skilled in the art will understand the term “humic acids” to include acids such as fulvic acid, and ulmic acid.
  • Humic acids are generally derived from plant materials and the production processes are performed and managed by operators that may or may not have a formal chemistry background.
  • humic acid is used interchangeably with “humic acids”.
  • Other terms used in the art to refer to compositions of humic acids include “humic acid derivatives” and “humic acid complex”. It will be clear to those skilled in the art the meaning of such terms by the context of their use.
  • the solid fertiliser composition of the present invention may include a variety of fertilisers apparent to those skilled in the art.
  • the solid fertiliser composition may, in one embodiment, include more than one variety of fertiliser.
  • the fertiliser may be selected from the group consisting of urea, ammonium salts, ammonium phosphates, lime, rock mineral fertiliser, gypsum, rock phosphate, superphosphates, potassium salts, calcium salts, magnesium salts, trace metal salts, and combinations thereof.
  • a solid fertiliser composition comprising urea and humic acids.
  • the urea may be in any solid form including granular or prilled form.
  • Humic acids are a product generally produced from plant material, such as from leonardite, lignite or peat. Other acids or plant derivatives produced by these processes are also generally referred to as humic acids.
  • the solid fertiliser composition of the present invention may include a variety of humic acids that will be apparent or available to those skilled in the art.
  • the humic acids may be used in the fertiliser composition of the present invention in any convenient form. In one embodiment chemically pure humic acid may be used. Alternatively chemically pure fulvic acid, ulmic acid, or other acids generally known as humic acids may be used. It is preferred that the humic acids selected for use in the solid fertiliser composition be derived from plant material and include a mixture of humic acids.
  • Humic acids typically is supplied in a composition as a liquid or dry humate and may include a variety of amino acids, microbes, vitamins and trace elements. Such additional components found in the humic acids composition may also be beneficial to the soil.
  • compositions comprising humic acids that include amino acids advantageously increases the retention of the fertiliser in the soil. Therefore, in a preferred embodiment of the present invention there is provided a solid fertiliser composition comprising a fertiliser, humic acids and amino acids.
  • the proportion of humic acids in the solid fertiliser composition of the present invention is preferably in the range of from 0.03% by weight to 4% by weight, more preferably in the range of from 1% by weight to 2% by weight.
  • the humic acid is supplied in a solution containing 10-38% humic acids. It is preferred that such solutions are added in a proportion that results in the final fertiliser composition having the desired amount of humic acids present.
  • the humic acids may be incorporated in the fertiliser as part of the process by which the fertiliser is manufactured. For example, in the manufacture of urea, a melt of urea is produced at about 130°C. Humic acids may be added to the melt of urea or during the solidification process.
  • Urea is solidified to form prills or granules.
  • Humic acids may be added to the urea during the prilling or granulation process. Processes whereby humic acids are incorporated into the fertiliser during the manufacture of the fertiliser granules preferably employs a concentrated solution or neat humic acids.
  • humic acids are applied to the fertiliser as a coating.
  • a solution of humic acids to a fertiliser such as urea provides a fertiliser composition that maintains nutrients availability to the soil over an extended period and allows a lesser amount of fertiliser to be applied to the soil.
  • Applying humic acids as a coating is a particularly advantageous method of incorporating humic acids to the fertiliser.
  • humic acids By introducing the humic acids into a melt of a fertiliser such as urea there is a potential for humic acids and components in humic acids compositions to partially decompose as a result of the temperature and/or pressure of the melt.
  • applying the humic acids as coating to a preformed granule allows the humic acids to be incorporated into the solid fertiliser composition at a lower temperature.
  • a 22% solution of humic acids such as those generally supplied from commercial humic acids suppliers as "technical humic acid” may be directly applied to a fertiliser such as urea.
  • the humic acids are applied at a level that does not substantially dissolve the granulated fertiliser.
  • a level that does not substantially dissolve the granulated fertiliser We have found that by applying 10 to 20 litres per tonne of a 22% solution of humic acids and preferably 18 litres per tonne permits the application of a sufficient amount of humic acids to the fertiliser without substantially dissolving prilled or granulated urea.
  • the humic acids solution may be sprayed onto prilled or granulated fertiliser.
  • the granules of fertiliser are sprayed with humic acids whilst being tumbled.
  • the granules may be tumbled as the granules are moved along a conveyer or tumbled in a rotary tumbler, such as the type used for applying anti-caking agents or trace element coatings. Other types of tumblers may be used that present granules for spraying with humic acids.
  • the coated granules may preferably be dried in a trommel drier, solar drier or fluidised bed drier. The dried granules may then be collected for transport or storage.
  • humic acid for example technical humic acids generally are produced with amino acids, microbes, vitamins, and other trace elements. Selected soil enhancers, emollients and other auxiliary materials may be incorporated with the humic acids sprayed onto the granules.
  • the present invention also includes the manufacture of a solid fertiliser composition.
  • a method for the manufacture of a solid fertiliser composition comprising the steps of blending a liquid fertiliser with a solution of humic acids and solidifying the blend to form a solid fertiliser composition.
  • the humic acids may be added to inorganic and organic fertiliser in the manufacturing process to enhance the qualities of the fertiliser.
  • fertilisers are produced as a liquid, melt or slurry.
  • the final liquid phase is piped to a prilling tower, granulator or pelletiser for final conversion to a solid granule.
  • the humic acids are metered at the required rate via a holding tank and dosing pump into an in-line mixer installed immediately prior to the prilling tower, granulator or pelletiser. Solid conversion is carried out by conventional means, as is subsequent storage, handling and packaging.
  • a solid fertiliser may be coated with humic acids to form the solid fertiliser composition of the present invention. Accordingly there is provided a method for the manufacture of a solid fertiliser composition comprising the steps of spraying humic acid in solution onto a solid fertiliser; and drying the humic acids coated fertiliser to form the solid fertiliser composition.
  • Pre-manufactured granular, pelletised, or prilled fertiliser (urea) may be coated with humic acids to enhance the qualities of the fertiliser.
  • fertiliser may be introduced by mechanical (loader, excavator) means or an automatic or semi-auto auger or conveying system.
  • Fertiliser may be gravity fed into a rotating trommel drum fitted with a series of spray bar(s) and lifting fins. Coating solution of humic acids are metered through the spray bars and the granules are treated with a fine spray at the applicable rate. The repeated lifting and falling throughout the trommel promotes an even coating and begins the drying step.
  • a one trommel system may incorporate a forced heated air system at the exit of the trommel, forcing hot air back through the trommel to ensure complete and rapid drying at exit of the dryer.
  • a forced heated air system at the exit of the trommel, forcing hot air back through the trommel to ensure complete and rapid drying at exit of the dryer.
  • Such a system would be inherently long and would command a significant footprint. For this reason, a dual trommel under and over configuration is more suited to commercial enterprise.
  • the fertiliser may be fed into the top trommel where the humic acids coating is applied and drying initiated, the coated fertiliser may be gravity fed to a lower receiving hopper to feed into the lower drying trommel operating counter to the upper.
  • the drying trommel can be fitted with a forced heated air system a the exit of the trommel, forcing heated air back through the trommel to ensure complete and rapid drying at exit of the dryer.
  • a forced heated air system a the exit of the trommel, forcing heated air back through the trommel to ensure complete and rapid drying at exit of the dryer.
  • the coated fertiliser On exit the coated fertiliser can be stored, handled and packaged. Whilst not wishing to be bound by theory it is believed that the cation exchange capacity and/or the reduction in urea hydrolysis speed in the humic acid complex provides the mechanism that results in the enhanced delivery of the nutrients from the fertiliser to the crop.
  • Granular urea was sprayed with Enhance (Western Nutrients Corporation USA and supplied by Advanced Nutrients Pty Ltd) at a rate of 15 litres per tonne.
  • the Enhance was sprayed onto the granular urea whilst the granular urea was being transported on a conveyer.
  • the sprayed urea was rotary kiln dried and transported for application to the soil for fertilising a crop. Subsequent controlled, replicated field trails were performed in with the following results:
  • Granular urea was sprayed with Enhance (Western Nutrients Corporation USA and supplied by Advanced Nutrients Pty Ltd) at a rate of 18 litres per tonne.
  • the Enhance was sprayed onto the granular urea being mixed in a horizontal auger mixer.
  • the sprayed urea was rotary kiln dried and transported for application to nitrogen deficient soil to measure nitrogen retention under varying moisture conditions. Subsequent controlled, replicated pot trials were performed with the following results: NITROGEN RETENTION IN SOIL (%)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)

Abstract

L'incorporation d'acides humiques dans une composition fertilisante solide permet de réguler la libération des substances nutritives de l'engrais dans le sol. La présente invention concerne une composition fertilisante solide contenant un engrais et des acides humiques. La présente invention concerne en outre des procédés d'incorporation d'acides humiques dans des compositions fertilisantes solides.
PCT/AU2003/000836 2002-07-01 2003-06-30 Fertilisation de sols WO2004002921A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003238563A AU2003238563B2 (en) 2002-07-01 2003-06-30 Fertilisation of soil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPS3296 2002-07-01
AUPS3296A AUPS329602A0 (en) 2002-07-01 2002-07-01 Fertilisation of soil

Publications (1)

Publication Number Publication Date
WO2004002921A1 true WO2004002921A1 (fr) 2004-01-08

Family

ID=3836853

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2003/000836 WO2004002921A1 (fr) 2002-07-01 2003-06-30 Fertilisation de sols

Country Status (3)

Country Link
AU (1) AUPS329602A0 (fr)
MY (1) MY139910A (fr)
WO (1) WO2004002921A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100340531C (zh) * 2005-03-03 2007-10-03 中国农业科学院土壤肥料研究所 双控复合型缓释肥料及其制备方法
CN101462903B (zh) * 2008-12-30 2011-04-27 山东鲁虹农业科技有限公司 防止落花落果的生态营养液及其制备方法
CN102040435A (zh) * 2009-10-16 2011-05-04 新疆满疆红农资化肥科技有限公司 一种有机缓释型林果肥的制备方法
CN101298396B (zh) * 2008-02-26 2011-05-11 朱庆然 一种生物有机无机复混肥料及其制备方法
CN102153424A (zh) * 2011-05-17 2011-08-17 谭钧 一种腐植酸尿素缓释肥料的制备新方法
CN102295487A (zh) * 2011-03-11 2011-12-28 山东远东国际生物化工股份有限公司 一种有机包膜控释复合肥料及其制备方法
CN101885646B (zh) * 2009-05-14 2013-03-06 张希纯 生物缓释尿素及其制备方法
US20130184151A1 (en) * 2012-01-12 2013-07-18 Fbsciences Holdings, Inc. Modulation of plant biology
CN103601600A (zh) * 2013-06-19 2014-02-26 中农舜天生态肥业有限公司 一种双酶增效缓释尿素及制备方法
EP2741608A2 (fr) * 2011-08-09 2014-06-18 Universiti Putra Malaysia Agent de traitement des plantes amélioré
ES2535581A1 (es) * 2015-02-20 2015-05-12 Sipcam Inagra, S.A. Composición ácida a base de leonardita y aminoácidos
US9540291B2 (en) 2015-02-10 2017-01-10 Land View, Inc. Coating for improved granular fertilizer efficiency
CN107141095A (zh) * 2017-05-31 2017-09-08 刘晓琼 家用花卉营养土
CN108341730A (zh) * 2018-02-23 2018-07-31 吉林世纪阿姆斯生物技术有限公司 一种包膜微生物改性颗粒尿素及其生产方法与应用
US10035736B2 (en) 2009-09-03 2018-07-31 Fbsciences Holdings, Inc. Seed treatment compositions and methods

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EP0968980A2 (fr) * 1998-07-02 2000-01-05 Agroqualita S.r.l. Composition microgranulaire d'engrais pour applicaton locale pendant l'ensemencement ou la transplantation
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CN1367159A (zh) * 2001-01-20 2002-09-04 吕庆淮 稀土改性多元复混肥

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EP0968980A2 (fr) * 1998-07-02 2000-01-05 Agroqualita S.r.l. Composition microgranulaire d'engrais pour applicaton locale pendant l'ensemencement ou la transplantation
CN1214331A (zh) * 1998-10-15 1999-04-21 王长山 尿素熔盐团粒法尿基复混肥工艺
CN1283600A (zh) * 1999-08-10 2001-02-14 王为民 包裹型腐植酸尿素及其制造方法
CN1281838A (zh) * 2000-08-29 2001-01-31 罗景泉 高效多元素复混肥料
CN1367159A (zh) * 2001-01-20 2002-09-04 吕庆淮 稀土改性多元复混肥

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100340531C (zh) * 2005-03-03 2007-10-03 中国农业科学院土壤肥料研究所 双控复合型缓释肥料及其制备方法
CN101298396B (zh) * 2008-02-26 2011-05-11 朱庆然 一种生物有机无机复混肥料及其制备方法
CN101462903B (zh) * 2008-12-30 2011-04-27 山东鲁虹农业科技有限公司 防止落花落果的生态营养液及其制备方法
CN101885646B (zh) * 2009-05-14 2013-03-06 张希纯 生物缓释尿素及其制备方法
US10035736B2 (en) 2009-09-03 2018-07-31 Fbsciences Holdings, Inc. Seed treatment compositions and methods
CN102040435A (zh) * 2009-10-16 2011-05-04 新疆满疆红农资化肥科技有限公司 一种有机缓释型林果肥的制备方法
CN102040435B (zh) * 2009-10-16 2013-10-16 新疆满疆红农资化肥科技有限公司 一种有机缓释型林果肥的制备方法
CN102295487A (zh) * 2011-03-11 2011-12-28 山东远东国际生物化工股份有限公司 一种有机包膜控释复合肥料及其制备方法
CN102153424A (zh) * 2011-05-17 2011-08-17 谭钧 一种腐植酸尿素缓释肥料的制备新方法
EP2741608A2 (fr) * 2011-08-09 2014-06-18 Universiti Putra Malaysia Agent de traitement des plantes amélioré
EP2741608A4 (fr) * 2011-08-09 2015-04-22 Univ Putra Malaysia Agent de traitement des plantes amélioré
US9485991B2 (en) * 2012-01-12 2016-11-08 Fbsciences Holdings, Inc. Modulation of plant biology
US20130184151A1 (en) * 2012-01-12 2013-07-18 Fbsciences Holdings, Inc. Modulation of plant biology
US10448635B2 (en) 2012-01-12 2019-10-22 Fbsciences Holdings, Inc. Modulation of plant biology
US11712040B2 (en) 2012-01-12 2023-08-01 Fbsciences Holdings, Inc. Modulation of plant biology
CN103601600A (zh) * 2013-06-19 2014-02-26 中农舜天生态肥业有限公司 一种双酶增效缓释尿素及制备方法
US9540291B2 (en) 2015-02-10 2017-01-10 Land View, Inc. Coating for improved granular fertilizer efficiency
US9938202B2 (en) 2015-02-10 2018-04-10 Landview, Inc. Coating for improved granular fertilizer efficiency
ES2535581A1 (es) * 2015-02-20 2015-05-12 Sipcam Inagra, S.A. Composición ácida a base de leonardita y aminoácidos
US11111186B2 (en) 2015-02-20 2021-09-07 Sipcam Inagra, S.A. Acid composition based on leonardite and amino acids
CN107141095A (zh) * 2017-05-31 2017-09-08 刘晓琼 家用花卉营养土
CN108341730A (zh) * 2018-02-23 2018-07-31 吉林世纪阿姆斯生物技术有限公司 一种包膜微生物改性颗粒尿素及其生产方法与应用

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Publication number Publication date
MY139910A (en) 2009-11-30
AUPS329602A0 (en) 2002-07-18

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