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WO2016132285A1 - Composition d'engrais - Google Patents

Composition d'engrais Download PDF

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Publication number
WO2016132285A1
WO2016132285A1 PCT/IB2016/050813 IB2016050813W WO2016132285A1 WO 2016132285 A1 WO2016132285 A1 WO 2016132285A1 IB 2016050813 W IB2016050813 W IB 2016050813W WO 2016132285 A1 WO2016132285 A1 WO 2016132285A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
expressed
comprised
weight
plants
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/IB2016/050813
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English (en)
Inventor
Mauro Faneschi
Marco MICCINESI
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.)
Microfertil Srl
Original Assignee
Microfertil Srl
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 Microfertil Srl filed Critical Microfertil Srl
Publication of WO2016132285A1 publication Critical patent/WO2016132285A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/0035—Compositions for glass with special properties for soluble glass for controlled release of a compound incorporated in said glass
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C05D9/02—Other inorganic fertilisers containing trace elements
    • 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
    • C05G5/40—Fertilisers incorporated into a matrix

Definitions

  • the present invention relates in general to the agronomic field, in particular the field of the products for the nutrition of plants, and more precisely it relates to a novel fertilizing composition with a glass matrix useful as a supplement of trivalent chromium, besides being useful as fertilizer and supplement of trace elements for the plants.
  • glass matrix compositions as fertilizers for plants; they are fertilizers that release in the culture soil for the plants mainly phosphorus and potassium, secondarily calcium, sodium, magnesium, and finally various trace elements, such as copper, iron, zinc, etc.
  • These products have an amorphous structure consisting of a glass matrix wherein trace elements are dispersed and bound, and they can be prepared with processes borrowed from the glassmaking industry technology by fusion of oxides, salts and minerals, bearers of the above mentioned elements to be released, by cooling the melt mass and granulation/milling. Due to their glassy structure and to the insolubility in water, they fall into the category of so-called controlled release fertilizers, as they ensure a slower release of the elements in the soil than conventional fertilizers.
  • vitreous matrix fertilizers have not those side effects of the traditional fertilizers that strongly impact on the environment, in particular in terms of pollution of underground aquifers, with consequences on the possibilities of use of water, and on the risk of alteration of the biodiversity.
  • the fertilizers having a glass matrix represent an excellent alternative to the traditional fertilizers from the point of view of environmental impact, on the other hand they are made so as to release the nutritive elements in the soil and to the plant according to a predetermined pattern that is imposed on the product at the time of production, but that does not necessarily follow the needs of the plant, greatly variable depending on the plant's state of development, the current soil conditions, etc. Moreover many of these products often proved to be quite unable to make available the microelements contained in them, in reasonable times and in effective amount.
  • acidic conditions in the soil can make it even more difficult the release of nutrients from a fertilizer having a glass matrix, whose very low solubility can further decrease in an acidic environment.
  • These conditions may also disadvantage the intake of certain nutrients than others, in the sense that the absorbability of a nutrient by the roots of the plants can be strongly influenced by conditions of pH and by the presence in the soil of compounds, such as aminoacids or organic oxyacids. It may therefore happen that, at the very moment in which the plant has greater need for intake of nutrients, their release from the fertilizer decreases and/or decreases their assimilability of the plant, while these factors may increase during periods in which the plant has less need of nutrients.
  • Chromium (III) chloride and sulphate are in fact included in the list of substances in the European Directive No. 2002/46/EC, which can be used in the preparation of foods for particular nutritional uses and in the preparation of food supplements.
  • the trivalent chromium needs for people and animals could therefore be satisfied through a proper diet, which includes for example the consumption of plants that have assimilated this element during growth. But it was reported in the literature that, also in the presence of high levels of chromium in the soil, the amount of chromium in the edible part of the plants was maintained always at extremely low concentrations, of the order of tens of nanograms per Kg of dry weight of the plant.
  • the Applicant has found a novel fertilizing composition having a glass matrix expressly studied for the release of trivalent chromium in the soil in a form that may be assimilated by the plants, included their edible portion, and for the release of other nutrient elements essential for a good growth of the plants.
  • This novel composition besides advantages of reduced environmental impact of the products having a glass matrix, has the further advantage of being able to modulate the release of the nutrient elements based on the plant's needs, varying the speed and entity of release of the elements in the glass matrix upon request of the plant, by emission from the root system of organic substances such as citric acid, oxalic acid, and further substances emitted from the plants in situations of deficiency of nutrients, thus favouring also the release of trivalent chromium from the composition and its assimilation of the plant.
  • the amounts of the individual constituents of the composition are to be meant as percentages with respect to the total weight of the composition.
  • the fertilizing composition with glass matrix according to the present invention has a weight percentage composition, expressed as weight of the individual components with respect to the total weight of the composition, of phosphorus (expressed as P 2 0 5 ) comprised between 26 and 36%, of potassium (expressed as K 2 0) comprised between 14 and 24%, of calcium (expressed as CaO) comprised between 5 and 15%, of iron (expressed as Fe 2 0 3 ) comprised between 5 and 16, of manganese and silicon (expressed as respective dioxides) comprised between 2 and 10% for each element, further comprising an amount of trivalent chromium (expressed as Cr 2 0 3 ) comprised between 0.1 and 6% by weight with respect to the total weight of the composition.
  • the amount of trivalent chromium (expressed as Cr 2 0 3 ) present in the composition is comprised between 0.2 and 4% by weight with respect to the total weight of the composition; optimal results for release, that represent the best compromise between the amount of chromium added to the composition and the amount released, have been obtained for compositions having an amount of trivalent chromium of approximately 3% w/w expressed as Cr 2 0 3 .
  • the present fertilizing composition can furthermore comprise various elements, for example can comprise one or more among the following elements: magnesium (expressed as MgO) in amount ranging from 0 to 10%, copper (expressed as CuO) in amount ranging from 0 to 3%, zinc (expressed as ZnO) in amount ranging from 0 to 10%, aluminum (expressed as Al 2 0 3 ) in amount ranging from 0 to 3%, boron (expressed as B 2 0 3 ) in amount ranging from 0 to 5% by weight, molybdenum (expressed as oxide Mo0 3 ) in amount ranging from 0 to 2% by weight, and cobalt (expressed as oxide Co 2 0 3 ) in amount ranging from 0 to 2% by weight.
  • the fertilizing composition of the invention may be used as such, for example in the form of pellets or granules, of powders or of aqueous dispersions, for distribution on the soil for growing plants, or it may be used to prepare a fertilizing product wherein the present composition is combined with other agents and substances agronomically acceptable and commonly used in fertilizing products, for example it can be combined with one or more among dispersing agents, organic composts or soil improvers, and substances for bio-stimulating the growth of plants and/or of their root system.
  • the present composition may moreover be used also as fertilizer for the plants grown in cultures without soil, commonly used in plant nurseries.
  • the composition of the invention can be for example mixed with organic composts and soil improvers having a spongy substance, wine stillage, and similar, so as to promote development of the root system in proximity of the composition with glass matrix that can be solubilized "upon request" of the plant roots themselves according to their own actual needs of the moment.
  • bio-stimulating substances can then further promote development of the root system, besides development of the whole plant, thus helping even more the response of the glass matrix to the call of the roots in terms of release of trace elements and of trivalent chromium, in a virtuous cycle of continuous and coordinated interaction between the plant and the composition having a glass matrix.
  • the fertilizing composition with glass matrix according to the invention can be prepared according to a known procedure, by which procedure the glass frits are generally prepared, for instance by mixing suitable precursors of the constituents of the final composition to be prepared, in the form of powder or pellet, by melting at high temperature the so obtained mixture, cooling down the fused mixture and finally grinding the granulate obtained after cooling.
  • This composition was prepared by using the same starting elements of the Example 1 , to which it was furthermore added trivalent chromium in the form of chromite in amount of 1 % by weight with respect of the total weight of the composition expressed as Cr 2 0 3 .
  • the amount of each of the other elements present was proportionally decreased as a consequence of the addition of 1 % of chromium, and the composition was prepared as described above in the Example 1.
  • Example 2 Similarly to the composition of Example 2, a further composition was prepared but containing 2.99% w/w of trivalent chromium, expressed as Cr 2 0 3 , always in the form of chromite.
  • Example 2 Similarly to the composition of Example 2, a further composition was prepared but containing 5.02% w/w of trivalent chromium, expressed as Cr 2 0 3 , always in the form of chromite.
  • Example 2 Similarly to the composition of Example 2, a further composition was prepared but containing 3.02% w/w of trivalent chromium, expressed as Cr 2 0 3 , in the form of chromium oxide.
  • compositions with glass matrix prepared as described above in Examples from 1 to 5 were subject in parallel to a test of release in laboratory, with the aim of evaluating the percentage of insoluble residue with respect to the total weight of the composition, as well as with the aim of assessing the amount of trivalent chromium released in a 2% solution of citric acid, that is one of the components of the acidic root exudate and it is contemplated in the Italian Gazzetta Ufficiale as analytical test of release. It was moreover carried out a check of the concentrations of hexavalent chromium in the eluate, that has showed the values far below the maximum values allowed as proof of the non-toxicity of the present compositions.
  • the test was carried out by introducing 1 g of each composition in 1 litre of a 2% aqueous solution of citric acid, maintaining the so formed suspension under moderate stirring at room temperature for 24 hours. At the end of this period of time the suspension was filtered and the filter, previously conditioned, was weighed thus obtaining the weight of insoluble residue. Each solution was instead subject to analysis for determining the concentrations of trivalent chromium and of hexavalent chromium dissolved in each of them.
  • the concentration of trivalent chromium in solution also taking into account the percentage of starting chromium added, reaches optimal values of dissolution in citric acid for values of starting chromium added to the composition around 3% w/w.
  • composition having a glass matrix prepared as described above in Example 3 and containing 2.99% w/w of trivalent chromium was subject to a test of release in laboratory, with the aim of quantifying the amount of trivalent chromium and of the other main elements contained in the composition released under conditions that simulate the prevalent conditions in the rhizosphere, reproduced in a laboratory method just known with the name "method of the rhizosphere” or "RHIZO-method", described in Feng M.H. et al. 2005a Chemosphere 59:939-949 and in Feng M.H. et al. 2005b Enviromental Pollution 137:231-240.
  • the composition under examination is solubilized in a solution of organic acids having low molecular weight (LMWOAs) that simulate, even more realistically than citric acid alone, the acidic exudates of the plants roots.
  • LMWAs organic acids having low molecular weight
  • the protocol adopted in this method is as follows: 2.00 g of moist soil of the rhizosphere is mixed with 20 ml of a solution of the following organic acids combined: acetic acid, lactic acid, citric acid, malic acid and formic acid, in 50 ml centrifuge vials previously cleaned. The total concentration of these organic acids was 10 mM, and their molar ratio was respectively 4:2: 1 : 1 : 1. The mixture was stirred for 16 hours, and then centrifuged at 3000 revolutions per 10 minutes. A 5 ml aliquot of supernatant was immediately removed with a pipette and transferred in a 10 ml round-bottom volumetric flask then HNO 3 2% was added up to the

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Pest Control & Pesticides (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

La présente invention concerne une nouvelle composition d'engrais ayant une matrice de verre, utile en tant que complément de chrome trivalent pour les plantes, constituée principalement d'anhydride phosphorique P205 en remplacement partiel de la silice, d'oxydes modificateurs de cet anhydride, c'est-à-dire en particulier K2O et CaO, et d'oligo-éléments, et comprenant en outre du chrome trivalent qui, une fois assimilée par les plantes, représente un complément valable de chrome trivalent, un élément essentiel dans le régime alimentaire de l'animal et de l'homme.
PCT/IB2016/050813 2015-02-17 2016-02-16 Composition d'engrais Ceased WO2016132285A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI20150032 2015-02-17
ITFI2015A000032 2015-02-17

Publications (1)

Publication Number Publication Date
WO2016132285A1 true WO2016132285A1 (fr) 2016-08-25

Family

ID=52633360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/050813 Ceased WO2016132285A1 (fr) 2015-02-17 2016-02-16 Composition d'engrais

Country Status (1)

Country Link
WO (1) WO2016132285A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600127838A1 (it) * 2016-12-19 2018-06-19 Sicer S P A Prodotto fitosanitario in forma di fritta.
IT201900006663A1 (it) 2019-05-09 2020-11-09 Mpd S R L Composizione fertilizzante comprendente una matrice vetrosa
CN114644457A (zh) * 2020-12-18 2022-06-21 宁波书通科技有限公司 一种无土栽培用缓释肥
JP7555265B2 (ja) 2020-12-24 2024-09-24 Ｔｏｍａｔｅｃ株式会社 養液栽培に用いる無機鉄含有ガラス組成物

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522859A2 (fr) * 1991-07-11 1993-01-13 Isuzu Glass Co., Ltd. Verre coloré
JPH07170852A (ja) * 1993-12-21 1995-07-11 Asahi Fiber Glass Co Ltd 植物栽培用硝子質組成物
WO2001049635A1 (fr) * 2000-01-03 2001-07-12 Shanmao Zhao Fertilisant forme de verre-oligoelements et son procede de fabrication
WO2007132497A2 (fr) * 2006-05-12 2007-11-22 Mpd Scientific S.R.L. Composé fertilisant comprenant une matrice de verre, son procédé de fabrication et ses utilisations
US20110247272A1 (en) * 2010-04-12 2011-10-13 Justin Cannock Mineral complex, compositions thereof, and methods of using the same
US20130269405A1 (en) * 2010-09-10 2013-10-17 Harsco Corporation Agricultural blend and process of forming an agricultural blend
US20130333428A1 (en) * 2010-09-10 2013-12-19 Harsco Corporation Agricultural binder system, agricultural blend, and process of forming an agricultural blend

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522859A2 (fr) * 1991-07-11 1993-01-13 Isuzu Glass Co., Ltd. Verre coloré
JPH07170852A (ja) * 1993-12-21 1995-07-11 Asahi Fiber Glass Co Ltd 植物栽培用硝子質組成物
WO2001049635A1 (fr) * 2000-01-03 2001-07-12 Shanmao Zhao Fertilisant forme de verre-oligoelements et son procede de fabrication
WO2007132497A2 (fr) * 2006-05-12 2007-11-22 Mpd Scientific S.R.L. Composé fertilisant comprenant une matrice de verre, son procédé de fabrication et ses utilisations
US20110247272A1 (en) * 2010-04-12 2011-10-13 Justin Cannock Mineral complex, compositions thereof, and methods of using the same
US20130269405A1 (en) * 2010-09-10 2013-10-17 Harsco Corporation Agricultural blend and process of forming an agricultural blend
US20130333428A1 (en) * 2010-09-10 2013-12-19 Harsco Corporation Agricultural binder system, agricultural blend, and process of forming an agricultural blend

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199536, Derwent World Patents Index; AN 1995-271372, XP002745727 *
DATABASE WPI Week 200151, Derwent World Patents Index; AN 2001-475954, XP002745728 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600127838A1 (it) * 2016-12-19 2018-06-19 Sicer S P A Prodotto fitosanitario in forma di fritta.
WO2018114671A1 (fr) * 2016-12-19 2018-06-28 Sicer S.P.A. Produit de protection des plantes se présentant sous la forme d'une fritte
IT201900006663A1 (it) 2019-05-09 2020-11-09 Mpd S R L Composizione fertilizzante comprendente una matrice vetrosa
CN114644457A (zh) * 2020-12-18 2022-06-21 宁波书通科技有限公司 一种无土栽培用缓释肥
JP7555265B2 (ja) 2020-12-24 2024-09-24 Ｔｏｍａｔｅｃ株式会社 養液栽培に用いる無機鉄含有ガラス組成物

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