WO2019115995A1 - Formulation de micronutriments pour une application par avion sur les cultures - Google Patents

Formulation de micronutriments pour une application par avion sur les cultures Download PDF

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Publication number
WO2019115995A1
WO2019115995A1 PCT/GB2018/053356 GB2018053356W WO2019115995A1 WO 2019115995 A1 WO2019115995 A1 WO 2019115995A1 GB 2018053356 W GB2018053356 W GB 2018053356W WO 2019115995 A1 WO2019115995 A1 WO 2019115995A1
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WO
WIPO (PCT)
Prior art keywords
oil
micronutrient
spray
composition
composition according
Prior art date
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Ceased
Application number
PCT/GB2018/053356
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English (en)
Inventor
Stuart Ward
Victoria BUTLER
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Yara UK Ltd
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Yara UK Ltd
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Filing date
Publication date
Application filed by Yara UK Ltd filed Critical Yara UK Ltd
Priority to PH1/2020/550777A priority Critical patent/PH12020550777B1/en
Priority to MX2020004446A priority patent/MX2020004446A/es
Publication of WO2019115995A1 publication Critical patent/WO2019115995A1/fr
Priority to CONC2020/0004788A priority patent/CO2020004788A2/es
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F11/00—Other organic fertilisers
    • 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
    • C05G5/20—Liquid fertilisers
    • C05G5/27—Dispersions, e.g. suspensions or emulsions

Definitions

  • the present invention relates to the use of oil-based dispersions of plant micronutrients for foliar application to crops via aerial application, compositions comprising mineral spray oils and oil-based dispersions of plant micronutrients, methods for making said compositions comprising mineral spray oils and oil-based dispersions of plant micronutrients, and the use of said mineral spray oils for foliar application to crops via aerial application.
  • Plant nutrients can be divided into three main classes: primary or macronutrients, such as nitrogen (N), phosphorus (P) and potassium (K) ; secondary nutrients, such as calcium (Ca), magnesium (Mg), sulphur (S), and sodium (Na) ; and micronutrients, such as boron (B), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn).
  • primary or macronutrients such as nitrogen (N), phosphorus (P) and potassium (K)
  • secondary nutrients such as calcium (Ca), magnesium (Mg), sulphur (S), and sodium (Na)
  • micronutrients such as boron (B), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn).
  • Solid fertilizers such as prills or granules containing one or more of the primary nutrients (N, P and K) represent the most common type of fertilizer and are typically applied to the soil.
  • liquid fertilizers are also available and are becoming increasingly important in many markets due to the benefits they offer to the grower in terms of convenience, flexibility, accuracy of delivery, and ease of application.
  • Liquid fertilizers containing primary, secondary and micronutrients, alone or in any combination, are widely available and may be applied using a variety of methods such as spraying onto the soil, injection into the soil, banding, incorporation into the seedbed during drilling; in the irrigation water (via fertigation or hydroponics systems); by spray application onto the foliage of the crop (foliar application); or in seed treatment.
  • Micronutrient fertilizers intended for foliar application, are available in a variety of physical forms such as soluble powders or granules, water- dispersible granules, wettable powders, soluble (liquid) concentrates and suspension concentrates.
  • Soluble powders and granules and soluble (liquid) concentrates are typically based on water-soluble inorganic salts of the micronutrients such as sulphates, chlorides and nitrates; or on water-soluble chelates such as EDTA, or on water-soluble complexes such as ligninsulphonates or citrates.
  • Said water-soluble compounds are used to produce aqueous compositions comprising said water-soluble compounds.
  • Water-dispersible granules and wettable powders may be based on substantially water-insoluble inorganic compounds. Although these compounds are substantially water-insoluble, the prior art describes how, after application to the foliage, the slightly acidic conditions present on the leaf surface facilitate the release of the micronutrients leading to assimilation by the plant. Aqueous suspension concentrate micronutrient fertilizers based on similar substantially insoluble sources are also widely used and offer the advantages of providing high nutrient content in an easy to use aqueous form.
  • the micronutrient would typically be diluted in water and applied to the crop using tractor- drawn spray equipment, although, for smaller areas, manual knapsack sprayers may be used.
  • tractor- drawn spray equipment for smaller areas, manual knapsack sprayers may be used.
  • knapsack sprayers for economic reasons it is common for farmers to co-apply micronutrients along with agrochemicals by "tank mixing" them together in the same spray tank.
  • the carrier used for the spray is usually a mineral oil or an oil-in-water emulsion rather than simply water.
  • the oil used facilitates the production of small spray droplets which do not evaporate before reaching the target, and also improves the coverage when using low spray volumes, thus increasing productivity of the spray operation.
  • Spray oils also have an inherent fungicidal effect and can act as adjuvants to improve the efficacy of certain agrochemicals.
  • compositions comprising 0.05 to 8 vol% (based on oil amount) of overbased trace metal salts of naphthenic acid in a mineral oil and US 4,125,395 (Texaco Trinidad Inc., 1978) describes micronutrient compositions comprising 0.025 - 8 % (w/v) of overbased trace metal salts of naphthenic acid in a mineral oil.
  • US 4,111,678 discloses a foliar spray composition comprising a metal chelate in oil.
  • US 4,165,230 discloses an agricultural spray oil composition containing low amounts (0.1-0.25 % (w/v)) of zinc dialkyl dithiophosphates.
  • US 4,155,739 discloses spray oil compositions comprising 0.01 to 2 weight% of oil-soluble boron compounds.
  • US 4,133,668 (Young, 1979) discloses suspensions of micronutrients in spray oil to be added in a sulphur melt to produce sulphur particles containing micronutrients.
  • micronutrient dispersions that are miscible with spray oils, in particular for foliar application to crops via spray oil systems, in particular aerial application.
  • liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble particulate micronutrient source(s) suspended in an oil-based liquid medium for foliar application to crops via spray oil systems, wherein the micronutrient source has a particle size, substantially in the range of 0.1 to 100 pm, is claimed.
  • a composition perse has been disclosed, a.o.
  • composition could also be used for foliar application to crops via spray oil systems.
  • a spray oil composition comprising a spray oil and the liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble particulate micronutrient source(s) suspended in an oil-based liquid medium.
  • composition is physically compatible with a wide range of plant protection agrochemicals, avoiding the
  • Suitable micronutrient sources are any substantially water-insoluble compounds of the micronutrient elements boron, copper, iron, manganese, molybdenum and zinc, such as, but not limited to, oxides, hydroxides, carbonates, phosphates, oxychlorides, oxysulphates and borates.
  • micronutrient source has a very small particle size, preferably in the range of 0.1 to 50 pm, even more preferably wherein 90 % of particles have a particle size ranging from 0.1 to 50 pm, ideally wherein 90 % of particles have a particle size ranging from 0.1 to 20 pm.
  • Such fine particle size may be obtained by milling coarser materials or result from the synthetic process employed to produce the compounds.
  • the liquid oil-miscible micronutrient composition essentially consists of an oil-based liquid medium as suspension medium for the one or more substantially water-insoluble particulate micronutrient sources. Preferably, no water is present in the liquid oil- miscible composition.
  • the liquid micronutrient composition comprising one or more substantially water- insoluble particulate micronutrient source, suspended in an oil-based liquid medium should be oil-miscible. Preferably, it should be miscible with spray oil for foliar application.
  • the oil-based liquid medium can be any suitable natural, mineral or synthetic oil, such as white mineral oil, but preferably an environmentally acceptable oil such as a vegetable oil is used.
  • suitable vegetable oils include rapeseed (canola) oil, soya oil, sunflower oil, linseed oil, castor oil, or any other similar vegetable oils.
  • Other oil-based liquid mediums are methylated oils, modified vegetable oils, glycols, glycerols and the like.
  • a solids loading of 30 to 80 weight% (w/w), more preferably a solids loading of 50 to 80 weight% (w/w) should be achieved, relative to the total weight of the composition.
  • the loading depends on the type of carrier oil, the type of dispersant, etc.
  • rapeseed (canola) oil with 60 weight% zinc oxide could still be pumped and could be produced using the method of WO 2014/128468 Al.
  • rapeseed (canola) oil with 70 weight% zinc oxide turned out to be too thick to be pumped, but by adding a dispersion agent, the amount could be increased to 70 weight% without increasing the viscosity of the resulting dispersion. It was an inventive aspect of the invention disclosed in WO 2014/128468 Al that it has been found possible to produce a dispersion with 65 to 70 weight% zinc oxide.
  • a dispersing agent may need to be
  • Suitable dispersing agents may be natural or synthetic, such as but not limited to, fatty acids, mono- and diglycerides, polycondensed fatty acids, polymerized fatty acid esters, phosphoric esters of polyethoxyethylated fatty alcohols, ethoxylated fatty alcohols, fatty acid modified polyesters, non-ionic block copolymers. It is an inventive aspect of the present invention that it has been discovered that inclusion of a suitable dispersing agent also facilitates easy and efficient dispersion of the micronutrient composition into the spray oil carrier prior to application, leading to improved productivity in the spray operation.
  • micronutrient suspension it is also desirable for the micronutrient suspension to have good stability so as to prevent rapid settlement of the micronutrient from the suspension in order to allow for storage, transport and ease of handling. Accordingly, it has been found advantageous to include any one of a dispersing agent, rheology agent, thickener and anti-settle agent or any combination thereof, in the micronutrient suspension.
  • Suitable rheology agents, thickeners and anti-settle agents include, but are not limited to, clays such as sepiolite, bentonite, attapulgite, hectorite, palygorscite and organically-modified clays; polyurethanes, polyurea; fumed silica, hydrophobically modified fumed silica; fumed mixed oxides.
  • a colorant material either dye or pigment, may be added to the formulation in order to aid monitoring of the spray process or to assist with product identification.
  • suitable pigments include, but are not limited to, Phthalocyanine Blues (for example, C.l. Pigment Blues 15, 15:1, 15:2, 15:3, 15:4) and Aluminium
  • Chlorophthalocyanine for example, C.l. Pigment Blue 79
  • Ultramarine Blue Red, yellow and green iron oxides.
  • the micronutrient suspension can be prepared by blending a suitable source of micronutrient in the form of a finely divided solid powder with an oil.
  • the pre-prepared non-aqueous liquid suspensions, based on substantially water-insoluble micronutrient compounds can be prepared according to WO 2014/128468 A1 (Yara UK Ltd, 2014) and were found to be fully pumpable, having a viscosity in the range 500 to 6000 cPs at 20 °C, preferably 2000 to 5000 cPs at 20 °C measured on a Brookfield LVD viscometer using Spindle 3 at 12 rpm.
  • the micronutrient composition according to the application is admixed with a spray oil, in particular a mineral spray oil, for use in foliar application to crops.
  • a spray oil in particular a mineral spray oil
  • a spray composition comprising a mineral spray oil and a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble particulate micronutrient source(s) suspended in an oil-based liquid medium, wherein the oil-based liquid medium is a vegetable oil, is claimed.
  • the spray composition essentially consists of a mineral spray oil and a liquid oil-miscible micronutrient composition comprising one or more substantially water- insoluble particulate micronutrient source, suspended in an oil-based liquid medium, wherein the oil-based liquid medium is a vegetable oil,.
  • the oil-based liquid medium is a vegetable oil,.
  • no water is present is the spray composition.
  • the mineral spray oil and the oil-based liquid medium of the liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble particulate micronutrient source, suspended in an oil-based liquid medium are fully miscible, i.e. they do not form an emulsion.
  • the oil-based liquid medium is selected from the group of rapeseed (canola) oil, soya oil, sunflower oil, linseed oil, castor oil, methylated oil, modified vegetable oil, glycols and glycerols.
  • rapeseed canola
  • soya oil soya oil
  • sunflower oil linseed oil
  • castor oil methylated oil
  • modified vegetable oil glycols and glycerols.
  • the spray composition according to the invention is prepared by mixing an appropriate amount of mineral spray oil and an appropriate amount of a liquid oil- miscible micronutrient composition comprising one or more substantially water-insoluble particulate micronutrient source, suspended in an oil-based liquid medium, wherein the oil-based liquid medium is a vegetable oil until an essentially fully dispersed spray composition is obtained.
  • essentially fully dispersed spray composition is meant a dispersion which shows minimal settlement and is easily re-dispersed, or is stable and does not show any separation.
  • Appropriate amounts are typically 10 to 30 litres of mineral spray oil mixed with 0.5 to 5 litres of liquid oil-miscible micronutrient composition. Typically, per hectare, 10 to 30 litres of mineral spray oil is used, mixed with 0.5 to 5 litres of liquid oil-miscible micronutrient composition.
  • a spray composition comprising a mineral spray oil and a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble particulate micronutrient source(s) suspended in an oil- based liquid medium is claimed for foliar application to crops via spray oil systems.
  • the spray oil system is selected from aerial application, tractor-drawn spray equipment, manual knapsack application, boomspray application and permanent spray lines, or any combination thereof.
  • kits of parts comprising an amount of mineral spray oil and an amount of a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble particulate micronutrient source, suspended in an oil-based liquid medium, wherein the oil-based liquid medium is a vegetable oil, is provided.
  • the following example shows the formulation required to make 1 kg of an oil-based suspension of zinc oxide containing 50 weight% Zn (zinc oxide USP grade having an average particle size of approximately 0.5 pm, 90 % of particles are smaller than 2 pm).
  • Rapeseed (canola) oil 0.3320 kg
  • the above components are added to a beaker in the order listed and mixed under high shear for 30 minutes after the last addition of dry ingredient.
  • the resultant product is a fluid suspension at ambient temperature with a viscosity of 4000+/- 1000 cPs at 20 °C as measured on a Brookfield LVD viscometer using spindle 3 at 12 rpm.
  • Example 2 Samples of the product were subjected to storage testing under various conditions. A sample stored at 20°C for a period of 4 months remained stable and fluid with no significant settlement of the suspended solids.
  • Example 2
  • the following example shows the formulation required to make 1 kg of an oil based suspension of zinc oxide and calcium borate (colemanite) containing 12.2 weight% Zn and 4.9 weight% B (zinc oxide USP grade having an average particle size of
  • the above components are added to a beaker in the order listed and mixed under high shear for 30 minutes after the last addition of dry ingredient.
  • the resultant product is a fluid suspension at ambient temperature with a viscosity of 2500+/- 500 cPs at 20 °C as measured on a Brookfield LVD viscometer using spindle 3 at 12 rpm.
  • Samples of the product were subjected to storage testing under various conditions.
  • the following example shows the formulation required to make 1 kg of an oil based suspension of cuprous oxide containing 68.8 weight% Cu (cuprous oxide having an average particle size specification of 99 % of particles smaller than 5 pm; 80 % particles smaller than 2 pm).
  • Methylated seed oil 0.1570 kg
  • the above components are added to a beaker in the order listed and mixed under high shear for 30 minutes after the last addition of dry ingredient.
  • the resultant product is a fluid suspension at ambient temperature with a viscosity of 3000+/- 500cPs at 20°C as measured on a Brookfield LVD viscometer using spindle 3 at 12 rpm.
  • Samples of the product were subjected to storage testing under various conditions.
  • a sample stored at 20°C for a period of 2 months remained stable and fluid with no significant settlement of the suspended solids.
  • the following example shows the formulation required to make 1 kg of an oil based suspension of manganese carbonate containing 29 weight% Mn (manganese carbonate having an average particle size specification of 100 % of particles smaller than 50 pm; 50 % particles smaller than 5 pm).
  • the above components are added to a beaker in the order listed and mixed under high shear for 30 minutes after the last addition of dry ingredient.
  • the resultant product is a fluid suspension at ambient temperature with a viscosity of 2500+/- 500 cPs at 20°C as measured on a Brookfield LVD viscometer using spindle 3 at 12 rpm.
  • Example 2 formulation based on zinc oxide and colemanite described in Example 2 in order to assess mixability with spray oil and typical agrochemicals used on plantation crops such as banana, for example those disclosed in EP 2077075 A1 [Realco SA, 2009).
  • the spray oil used for the tests was light mineral oil with a density of 0.838 g/ml at 25°C and flash point (closed cup) of 112°C.
  • a commercially available aqueous-based suspension concentrate zinc micronutrient fertilizer, YaraVita Zintrac 700 (Yara) was included as comparative experiment.
  • the agrochemicals used in the tests were as follows: Tilt 250E (fungicide, Syngenta, 250g/l propiconazole), Bumper (fungicide, Adama, 250g/l propiconazole), Impulse 500 EC (fungicide, BayerCropScience, 500 g/l spiroxamine), Emulsifier (Cll-15 ethoxylated alcohol 7EO).
  • the tests were carried out using stoppered glass test tubes.
  • the oil, micronutrient composition and agrochemical were added in the order listed using quantities in proportion to the application rates shown but scaled down to 20 ml of spray oil, thus for tank mix) below 20 ml Spray Oil was mixed with 3 ml Composition 2, and so on.. After each addition, the test tube was inverted 20 times in order to thoroughly mix the components. The tank mixes were assessed immediately after mixing and then again after standing for 2 hours.
  • Micronutrient compositions 1 and 2 were applied by foliar spraying at the growth stage defined as immediately pre-ear emergence using rates equivalent to 2 litre/ha and 4 litre/ ha in 30 litre/ha spray oil. Two control treatments were carried out for comparison: the first using spray oil alone at 30 litres/ha, the second using a commercially available water based zinc suspension concentrate, YaraVita Zintrac 700 (Yara) at 1 litre/ha in 30 litres/ha water. The crop was assessed for symptoms of phytotoxicity seven days after spraying.
  • the invention provides a use of a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium, for foliar application to crops via spray oil systems, and in particular for aerial application to tropical plantation crops.
  • a liquid oil-miscible micronutrient composition comprising one or more substantially water-insoluble micronutrient source, suspended in an oil-based liquid medium, for foliar application to crops via spray oil systems, and in particular for aerial application to tropical plantation crops.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fertilizers (AREA)

Abstract

L'invention concerne l'utilisation d'une composition de micronutriments miscibles dans l'huile liquide comprenant une ou plusieurs sources de micronutriments particulaires sensiblement non hydrosolubles, en suspension dans un milieu liquide à base d'huile, pour une application foliaire sur les cultures par l'intermédiaire de systèmes d'huile pour pulvérisation, la source de micronutriments présentant une taille de particules sensiblement dans la plage de 0,1 à 100 µm.
PCT/GB2018/053356 2017-12-11 2018-11-20 Formulation de micronutriments pour une application par avion sur les cultures Ceased WO2019115995A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PH1/2020/550777A PH12020550777B1 (en) 2017-12-11 2018-11-20 Micronutrient formulation for aerial crop application
MX2020004446A MX2020004446A (es) 2017-12-11 2018-11-20 Formulacion de micronutrientes para la aplicacion aerea a cultivos.
CONC2020/0004788A CO2020004788A2 (es) 2017-12-11 2020-04-17 Formulación de micronutrientes para la aplicación aérea a cultivos

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1720609.5 2017-12-11
GB1720609.5A GB2570860B (en) 2017-12-11 2017-12-11 Micronutrient formulation for aeriel crop application

Publications (1)

Publication Number Publication Date
WO2019115995A1 true WO2019115995A1 (fr) 2019-06-20

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Application Number Title Priority Date Filing Date
PCT/GB2018/053356 Ceased WO2019115995A1 (fr) 2017-12-11 2018-11-20 Formulation de micronutriments pour une application par avion sur les cultures

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CO (1) CO2020004788A2 (fr)
EC (1) ECSP20032499A (fr)
GB (1) GB2570860B (fr)
MX (1) MX2020004446A (fr)
PH (1) PH12020550777B1 (fr)
WO (1) WO2019115995A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022086924A1 (fr) * 2020-10-20 2022-04-28 Keystone Specialty Chemicals LLC Compositions en suspensions liquides et particules d'engrais enrobées

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112174731A (zh) * 2020-09-28 2021-01-05 湖北富邦科技股份有限公司 一种油基富含微量元素叶面肥及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692529A (en) * 1970-09-08 1972-09-19 Loren J Rychman Process of oiling
US3982920A (en) * 1974-12-02 1976-09-28 Texaco Inc. Stabilized dispersions of micronutrients in spray oils
US4133668A (en) * 1977-06-09 1979-01-09 Union Oil Company Of California Multicomponent soil supplement
WO2011103617A1 (fr) * 2010-02-23 2011-09-01 Innovative Chemical Services Pty Ltd Compositions de nutriment foliaire
WO2011107443A1 (fr) * 2010-03-02 2011-09-09 Bayer Cropscience Ag Utilisation du propinèbe dans le cadre d'un traitement curatif physiologique en cas de déficience en zinc
WO2014128468A1 (fr) * 2013-02-20 2014-08-28 Yara Uk Limited Enrobage d'engrais contenant des micronutriments

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026694A (en) * 1974-12-02 1977-05-31 Texaco Inc. Stabilized dispersions of micronutrients in spray oils
US4111678A (en) * 1977-03-10 1978-09-05 Texaco Trinidad Inc. Foliar feeding organometallic composition
EP2077075A1 (fr) * 2007-12-31 2009-07-08 Realco S.A. Composition et procédé pour le traitement de la cercosporiose du bananier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692529A (en) * 1970-09-08 1972-09-19 Loren J Rychman Process of oiling
US3982920A (en) * 1974-12-02 1976-09-28 Texaco Inc. Stabilized dispersions of micronutrients in spray oils
US4133668A (en) * 1977-06-09 1979-01-09 Union Oil Company Of California Multicomponent soil supplement
WO2011103617A1 (fr) * 2010-02-23 2011-09-01 Innovative Chemical Services Pty Ltd Compositions de nutriment foliaire
WO2011107443A1 (fr) * 2010-03-02 2011-09-09 Bayer Cropscience Ag Utilisation du propinèbe dans le cadre d'un traitement curatif physiologique en cas de déficience en zinc
WO2014128468A1 (fr) * 2013-02-20 2014-08-28 Yara Uk Limited Enrobage d'engrais contenant des micronutriments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022086924A1 (fr) * 2020-10-20 2022-04-28 Keystone Specialty Chemicals LLC Compositions en suspensions liquides et particules d'engrais enrobées

Also Published As

Publication number Publication date
ECSP20032499A (es) 2020-07-31
GB2570860B (en) 2022-04-27
GB2570860A (en) 2019-08-14
PH12020550777B1 (en) 2022-12-07
MX2020004446A (es) 2020-07-22
PH12020550777A1 (en) 2021-04-26
CO2020004788A2 (es) 2020-05-29
GB201720609D0 (en) 2018-01-24

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