EP3558899A1 - Composition granulaire à usage agricole capable d'accroître la quantité d'oxygène dans le milieu de croissance - Google Patents

Composition granulaire à usage agricole capable d'accroître la quantité d'oxygène dans le milieu de croissance

Info

Publication number
EP3558899A1
EP3558899A1 EP17832363.0A EP17832363A EP3558899A1 EP 3558899 A1 EP3558899 A1 EP 3558899A1 EP 17832363 A EP17832363 A EP 17832363A EP 3558899 A1 EP3558899 A1 EP 3558899A1
Authority
EP
European Patent Office
Prior art keywords
peroxide
formulation
nitrogen
weight
formulation according
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.)
Pending
Application number
EP17832363.0A
Other languages
German (de)
English (en)
Inventor
Massimiliano NEGRA
Marco Betti
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.)
Euro Tsa Srl
Original Assignee
Euro Tsa 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 Euro Tsa Srl filed Critical Euro Tsa Srl
Publication of EP3558899A1 publication Critical patent/EP3558899A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
    • 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 to a fertilizer formulation comprising granules comprising at least one fertilizing substance and an effective amount of a mixture comprising a polymer (P) and at least one inorganic peroxide, wherein said mixture forms a coating and/or is absorbed, and/or is adsorbed onto nuclei of the granules, and/or is incorporated therein.
  • a fertilizer formulation comprising granules comprising at least one fertilizing substance and an effective amount of a mixture comprising a polymer (P) and at least one inorganic peroxide, wherein said mixture forms a coating and/or is absorbed, and/or is adsorbed onto nuclei of the granules, and/or is incorporated therein.
  • the present invention further relates to a process for the preparation of said formulation and the uses thereof.
  • fertilizer(s) both in liquid and, preferably, in granular form
  • the fertilizer(s) is distributed in a position near the seed or plant, so as to impart a good so-called starter effect to germination, rooting and the initial stages of development thereof.
  • DE 3000450 discloses that administering agents capable of releasing oxygen to the roots of plants can activate and stimulate plant nutrition and the regeneration of soils that have been contaminated with salts or gases, as well as potentially inhibiting the growth of anaerobic microorganisms.
  • WO 2007/092180 A2 and US 2006/0272205 relate to compositions capable of releasing oxygen in hydroponic crop production.
  • the kinetics of oxygen release in the growth medium by the various inorganic peroxides is highly variable, and it is thus practically impossible to obtain an effective and constant release of oxygen in the growth medium.
  • the release constant (Ks P ) of potassium peroxide is 3000 times greater than that of magnesium peroxide, so that, in conventional formulations, calcium peroxide has a very fast release of oxygen in the first day of use and practically a zero or negligible release in the following two weeks, whereas magnesium peroxide has a release of about 10% in the first 6 days following administration.
  • compositions for agricultural use as a fertilizer, or as an aid to the growth of plant species which is capable of providing oxygen in a controlled manner and as constantly as possible, and which is versatile for practically every type of crop, easy to prepare and economical.
  • a suitable fertilizer formulation in granules comprising or, alternatively, consisting of granules having nuclei which comprise or, alternatively, consist of at least one fertilizing substance based on nitrogen (N) and/or phosphorus (P), and possibly potassium (K), and are at least partially coated with a mixture of a polymer and an inorganic peroxide, capable of gradually and effectively releasing oxygen, is able to provide the desired response to the above-described technical problem.
  • the present invention relates to a granular fertilizer formulation comprising or, alternatively, consisting of granules (G), wherein said granules (G) comprise at least one nucleus (NU) comprising or, alternatively, consisting of at least one fertilizing substance based on nitrogen (N), nitrogen-phosphorus (NP), or nitrogen-phosphorus-potassium (NPK) and having the ability to favour the germination and rooting of seeds and plants in the initials stages of their development, and an effective amount of a mixture (M) comprising a polymer (P) and at least one inorganic peroxide (IP), wherein said mixture (M) forms a coating and/or is absorbed, and/or is adsorbed onto the nuclei (NU), and/or is incorporated therein; said polymer (P) being a polyglycol or derivatives thereof.
  • NU nucleus
  • NP nitrogen-phosphorus
  • NPK nitrogen-phosphorus-potassium
  • the present invention further relates to a process for the preparation of the formulation as described above, comprising at least the following steps:
  • N nitrogen
  • NP nitrogen- phosphorus
  • NPK nitrogen-phosphorus-potassium
  • step i. coating, adsorption and/or absorption, on the surface of the granule formed in step i., of a mixture comprising at least the polymer (P) and the peroxide (IP).
  • the present invention provides the use of a granular formulation as described above as a fertilizer formulation for the treatment of vegetative surfaces that require an increase in oxygenation and/or oxygen dissolved in the growth medium.
  • inorganic peroxide indicates a salt formed by a cation belonging to the group of alkali (group I in the periodic table), or alkaline earth (group II) metals with the peroxide ion (O2 2 ).
  • polyglycol means a polymer formed by esterification of a glycol.
  • Polyglycols are substantially polyethers having a hydroxy I group at the ends of the chain. They are usually prepared from epoxides; in this case their general formula is of the HO-[CHR-CHR'-0-]n-H type, where R and R' are alkyl groups or hydrogen atoms.
  • the formulation (or composition) according to the present invention is a zinc-enriched microgranular phosphorus- and nitrogen-based fertilizer with the addition of a peroxide that possesses the property of freeing oxygen in a gradual and easily measurable manner once it enters into contact with the soil, particularly suitable in localized fertilization at the time of sowing or transplanting crops such as maize, rice, tomatoes, sunflowers, sugar beets and autumn-winter grains, fruit-bearing plants and vegetable crops, both field-grown and greenhouse-grown, lawns, soil and/or composts.
  • crops such as maize, rice, tomatoes, sunflowers, sugar beets and autumn-winter grains, fruit-bearing plants and vegetable crops, both field-grown and greenhouse-grown, lawns, soil and/or composts.
  • the formulation of the present invention advantageously favours the germination of the seed and ensures lasting, sustained development of the plant during the delicate initial steps which manifests itself with a prompt development of the root system and vigorous development of seedlings.
  • the presence of peroxide in the fertilizer formulation according to the present invention enables a reduction in the amount of nitrogen and phosphorus that is applied to the soil.
  • Eutrophication consists in an increase in the input of nutrient substances, mainly nitrogen and phosphorus (organic load), until they exceed the receiving capacity of the body of water (i.e. the capacity of a lake, river or sea to purify itself), triggering structural changes in the water, including the excessive growth of algae.
  • composition according to the present invention makes it possible to obtain a root development and root system development, both in terms of root length and in terms of degree of fasciculation, and production yield per hectare comparable to or better than what is obtained with fertilizers having a lower nitrogen and phosphorus content.
  • the nutrient content and weight content of the components of fertilizer compositions can be determined on the basis of the methods currently used and known to the person skilled in the art; by way of non-limiting example, according to the method of fertilizer analysis published by the Italian Ministry of Agricultural, Food and Forestry Policies, National Soil and Agricultural and Forest Soil Quality Observatory and/or according to the methods of the standard ISO catalogue.
  • the formulation according to the present invention advantageously has a uniform, free-flowing granule (otherwise commonly indicated as a "microgranule") with a diameter typically comprised between 0.01 and
  • said granules (G) are preferably homogeneous granules, having an average diameter comprised from 0.01 mm to 3 mm, preferably having an average diameter comprised from 0.3 mm to 1.2 mm, and/or having a specific density comprised from 0.6 to 1 kg/I, preferably from 0.7 to 0.8 kg/I.
  • the average diameter of the particles can be determined on the basis of the methods known to the person skilled in the art, for example by means of methods based on sieving.
  • said at least one fertilizing substance is preferably selected from the group consisting of nitrogen (N), ammonia nitrogen (N), organic nitrogen (N), ureic nitrogen (N), phosphorus (P), monoammonium phosphate (MAP), phosphoric anhydride (P2O5), water- soluble phosphoric anhydride (P2O5), water-soluble phosphoric anhydride (P2O5) and neutral ammonium citrate, phosphoric anhydride (P 2 0 5 ) soluble in 2% formic acid, potassium phosphite; potassium (K), water- soluble potassium oxide (K 2 0); said fertilizing substance being present in an amount by weight from about 10% or 50% by weight to about 99.9%, more preferably from 90% by weight to about 99.5% by weight, relative to the total weight of the formulation.
  • composition according to the present invention preferably further comprises one or more substances selected from among zinc (Zn), zinc (Zn) monosulphate, boron (B), carbon (C), organic carbon (C) of biological origin, humic acids, leonardite (slow-release humic acid, powder, according to the common meaning of the term), sulphuric anhydride, and mixtures thereof, in addition to processing additives and co-formulants, wherein said one or more substances are in a variable amount by weight comprised from 0 to 10% by weight, preferably comprised from 0 to 0.5% or 1% by weight, relative to the total weight of the formulation.
  • Said additives and co-formulants comprise, without limitation, common excipients selected from adjuvants, disintegrating and solubilising agents, preservatives, fillers and/or carriers, commonly used in the sector and well known to the person skilled in the art.
  • the composition according to the present invention comprises zinc and phosphorus.
  • said inorganic peroxide is at least one among calcium peroxide, magnesium peroxide, barium peroxide, sodium peroxide, lithium peroxide and potassium peroxide; preferably calcium peroxide, preferably wherein said inorganic peroxide is present in an amount by weight comprised from 0.5% to 10% by weight, relative to the total weight of the granule
  • said polymer (P) is preferably a polypropylene glycol or a polyethylene glycol, or a derivative thereof.
  • the central nucleus (NU) is partially or totally coated by the polymer (P) and inorganic peroxide (IP) mixture.
  • the formulation of the present invention comprises the following amount of components by weight/total weight of the formulation: nitrogen (N) 8-12%, phosphorus (e.g. phosphoric anhydride) 36-52%, peroxide 0.1-10%.
  • the formulation of the present invention comprises the following amount of components by weight/total weight of the formulation: ammonia nitrogen (N) 10%; water-soluble phosphoric anhydride (P2O5) and neutral ammonium citrate: 46%; water-soluble phosphoric anhydride (P 2 0 5 ) 42%, total zinc 1%.
  • the present invention provides a process for the preparation of the formulation as described above, wherein said mixture (M) forms a coating and/or is absorbed, and/or is adsorbed on the nuclei (NU), comprising at least the following steps:
  • NU nucleus
  • NP nitrogen-phosphorus
  • NPK nitrogen-phosphorus-potassium
  • step ii coating, adsorption and/or absorption of a mixture comprising at least the polymer (P) and the peroxide (IP) on the surface of the nucleus of the granule formed in step i.
  • step i. preferably comprises the sub-steps of:
  • step ii. the mixture is preferably sprayed onto the nucleus (NU) of the granule (G), more preferably in such a way as form a coating layer thereof.
  • the present invention further relates to the use of a granular formulation as described above as a fertilizer formulation for the treatment of vegetative surfaces that require an increase in oxygenation and/or oxygen dissolved in the growth medium.
  • the formulation according to the present invention can be distributed with the aid of microgranulators present on seed planters. Localization of the fertilizer at the time of sowing reduces waste and optimises the times and costs of distribution thereof, thus maximizing fertilization.
  • the formulation according to the present invention can have application both in conventional soils and in non-traditional forms of crop production, e.g. hydroponic.
  • Crop rotation Field peas
  • Harvesting consisted in the separation of red, yellow, green and rotten fruit. At the time of harvest, the fruit was weighed. After the fruit was weighed, the plant biomass of the 6 plants was weighed (identification of the fresh weight). Subsequently, the stems and leaves were placed in an oven at 95°C for 8 hours to determine the dry weight. After the weighing of the plant biomass, the associated roots were unearthed with a spade. They were weighed to identify the fresh weight. Subsequently, the roots were placed in an oven at 95 °C for 8 hours to identify the dry weight.
  • MAP monoammonium phosphate
  • leonardite 4% zinc sulphate 3% calcium peroxide 3%
  • MAP monoammonium phosphate: 94%; leonardite 2.5% zinc oxide 1.4%; ammonium sulphate 1.7%, non-active ingredients 0.4%
  • N total nitrogen
  • P2O5 water-soluble phosphoric anhydride
  • P2O5 neutral ammonium citrate
  • P2O5 water-soluble phosphoric anhydride
  • MAP monoammonium phosphate: 89%; leonardite 5% zinc sulphate 3%; non-active ingredients 3%
  • Tables 1 to 6 show the results of the trial.
  • the results for the water regime factor are in tables 4, 5 and 6, whereas the results for the product factor are in the first three tables.
  • “Stomatal conductance” indicates the amount of carbon dioxide that is entering, or water vapour that is exiting through the stomata of a leaf
  • N tester is an index of the leaf chlorophyll, the higher the value, the higher the amount of chlorophyll,
  • Water productivity is the ratio between the yield and mm of water that was available to the crop (rainfall + irrigation).
  • the composition comprising peroxides according to the present invention assured the best yield (91.1 t/ha), and also did so in the reduced water regime (70%) with a production of 80.6 t/ha.
  • the differences with the unfertilized test soils are very evident in all three water regimes.
  • the Zn Composition and WR Composition gave good yields, but they were statistically lower versus peroxide in both the standard and reduced water regimes.
  • the nutrients and energy contained in rice seeds are capable of contributing to the germination and development of rice seedlings in the first phases of germination and emergence.
  • Nutrients are subsequently supplied by the newly formed root system and the foliage is capable of producing energy and fixing carbon by means of the process of photosynthesis.
  • the aim of this study was to assess the effects of distributing the microgranular fertilizer according to the present invention localized on the row during the sowing steps in the cultivation of rice planted in rows, with seeds buried in soil, at two locations in the rice-growing area of northwest Italy.
  • N total nitrogen
  • P2O5 water-soluble phosphoric anhydride
  • P2O5 neutral ammonium citrate
  • P2O5 water-soluble phosphoric anhydride
  • N total nitrogen
  • P2O5 water-solub!e phosphoric anhydride
  • P2O5 neutral ammonium citrate: 50%
  • P2O5 water-soluble phosphoric anhydride 48%, total zinc 1%.
  • MAP monoammonium phosphate
  • leonardite 1%
  • zinc sulphate 3%
  • non-active ingredients q.s. to 100%
  • Each plot was 7.5 m long and 1.4 m wide for a total surface of 10,5 m 2 .
  • the seed dose employed was 180 kg/ha and at the time of sowing, the fertilizer dose provided for was added to the seeds in the planter drum.
  • a Hege plot planter was used to create plots with 8 rows spaced 17 5 cm apart.
  • the trial was conducted in northwest Italy in a field with a particle size type: sandy-loam.
  • the plots showed no difference at the flowering stage, which was observed about 100 days after sowing.
  • Density measured as the number of plants per m 2 , was similar in all three test plots; this observation was also recorded in terms of number of culms per m 2 .
  • test plot with the peroxide fertilizer according to the invention showed a 103.75% increase compared to the control equal to 100%, a statistically better value than the control and comparable with fertilization with Zn Fertilizer (commercial benchmark for comparison).
  • the vines were planted (northwest Italy, white Muscat grape variety VCR3, rootstock S04, eastern exposure, elevation 360 m) with a short root, by means of a forked needle, or with a long root in a previously prepared hole.
  • the fertilizer composition (peroxide, as defined above) according to the present invention was distributed in the hole near the root system (50 g/plant) without coming into direct contact with the roots. The length of the main shoot of each treated plant was measured and expressed in centimetres.
  • the shoot length (cm) is shown in Table 11 below.
  • composition according to the invention enables better results to be obtained in terms of shoot length (cm) compared to untreated crops and, in a particularly significant manner, compared to crops treated with a conventional fertilizer (NPK).

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

Abstract

La présente invention concerne une formulation d'engrais comprenant des granulés contenant au moins une substance fertilisante et un mélange constitué d'un polymère (P) et d'au moins un peroxyde inorganique, un procédé de préparation de ladite formulation et ses utilisations. Selon un mode de réalisation, le polymère est un polypropylène glycol, un polyéthylène glycol, ou un dérivé de ceux-ci. Le peroxyde inorganique est au moins d'un type parmi le peroxyde de calcium, le peroxyde de magnésium, le peroxyde de baryum, le peroxyde de sodium, le peroxyde de lithium et le peroxyde de potassium, de préférence le peroxyde de calcium.
EP17832363.0A 2016-12-23 2017-12-22 Composition granulaire à usage agricole capable d'accroître la quantité d'oxygène dans le milieu de croissance Pending EP3558899A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102016000130834A IT201600130834A1 (it) 2016-12-23 2016-12-23 Composizione granulare ad uso agricolo in grado di aumentare la quantità di ossigeno nel terreno di coltura.
PCT/IB2017/058338 WO2018116264A1 (fr) 2016-12-23 2017-12-22 Composition granulaire à usage agricole capable d'accroître la quantité d'oxygène dans le milieu de croissance

Publications (1)

Publication Number Publication Date
EP3558899A1 true EP3558899A1 (fr) 2019-10-30

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ID=58609886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17832363.0A Pending EP3558899A1 (fr) 2016-12-23 2017-12-22 Composition granulaire à usage agricole capable d'accroître la quantité d'oxygène dans le milieu de croissance

Country Status (3)

Country Link
EP (1) EP3558899A1 (fr)
IT (1) IT201600130834A1 (fr)
WO (1) WO2018116264A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116496123A (zh) * 2023-05-10 2023-07-28 井冈山红壤研究所(江西省农业科学院井冈山分院) 一种井冈蜜柚增效缓释专用肥、制备方法及其应用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112759190A (zh) * 2020-12-30 2021-05-07 广西壮族自治区畜牧研究所 水培蛋白草处理畜禽污水的方法

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US4316879A (en) * 1977-06-17 1982-02-23 Fmc Corporation Stabilized sodium carbonate peroxide preparation method
US20060178271A1 (en) * 2005-01-07 2006-08-10 The Andersons Agriservices, Inc. Foaming granule and method for making same
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US20120067094A1 (en) * 2010-03-25 2012-03-22 Taylor Pursell Urea fertilizer containing central volatilization inhibitor particles to reduce release of ammonia and processes for making same
CN104311288A (zh) * 2014-10-10 2015-01-28 安徽万利生态园林景观有限公司 一种废弃床垫料制成的茄子苗圃基肥及其制备方法
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US20060272205A1 (en) * 2004-12-30 2006-12-07 Aerogrow International, Inc. Time-release, oxygen-generating, and effervescing nutrient compositions and methods for growing plants
US20060178271A1 (en) * 2005-01-07 2006-08-10 The Andersons Agriservices, Inc. Foaming granule and method for making same
US20120067094A1 (en) * 2010-03-25 2012-03-22 Taylor Pursell Urea fertilizer containing central volatilization inhibitor particles to reduce release of ammonia and processes for making same
CN104311288A (zh) * 2014-10-10 2015-01-28 安徽万利生态园林景观有限公司 一种废弃床垫料制成的茄子苗圃基肥及其制备方法
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116496123A (zh) * 2023-05-10 2023-07-28 井冈山红壤研究所(江西省农业科学院井冈山分院) 一种井冈蜜柚增效缓释专用肥、制备方法及其应用方法

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WO2018116264A1 (fr) 2018-06-28
IT201600130834A1 (it) 2018-06-23

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