WO2020104914A1 - Procédés et compositions d'engrais pour le traitement d'une plante et milieu de croissance de plante - Google Patents

Procédés et compositions d'engrais pour le traitement d'une plante et milieu de croissance de plante

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Publication number
WO2020104914A1
WO2020104914A1 PCT/IB2019/059883 IB2019059883W WO2020104914A1 WO 2020104914 A1 WO2020104914 A1 WO 2020104914A1 IB 2019059883 W IB2019059883 W IB 2019059883W WO 2020104914 A1 WO2020104914 A1 WO 2020104914A1
Authority
WO
WIPO (PCT)
Prior art keywords
fertilizer
composition
fertilizer composition
fertilizers
npks
Prior art date
Application number
PCT/IB2019/059883
Other languages
English (en)
Inventor
Kahlid AL-ROHILY
Andrew KELLS
Original Assignee
Sabic Global Technologies B.V.
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 Sabic Global Technologies B.V. filed Critical Sabic Global Technologies B.V.
Publication of WO2020104914A1 publication Critical patent/WO2020104914A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment

Definitions

  • the invention generally concerns a nitrogen, phosphorus, potassium, and sulfur containing fertilizer.
  • the fertilizer can contain 9-17 wt. % elemental nitrogen (N), 21-25 wt. % P2O5 (P), 12-22 wt. % K2O (K), and 0.5-10 wt. % elemental sulfur (S).
  • the fertilizer can be used to help grow Zea mays.
  • Soil nutrients such as nitrogen, phosphorus, potassium, and sulfur, as well as trace elements such as iron, zinc, copper, and magnesium, are useful for achieving fostering agriculture and growth of plants.
  • fertilizers have been developed to help replace the depleted vital nutrients.
  • Maize Zea may
  • Maize is one of the most widely grown cereals in the world, along with wheat and rice in terms of production and trading.
  • the total maize-cropped area worldwide is estimated to be over 184 million hectares, producing over 1 billion tons of grain yearly.
  • the average production of maize was 5,520 tons per hectare in 2013. However, the average production per hectare is considered low and has been declining globally.
  • the discovery is premised on providing ratios of nutrients in a fertilizer that is based on nutrient uptake in this crop.
  • the fertilizer can contain 9-17 wt. % elemental nitrogen (N), 21-25 wt. % P2O5 (P), 12-22 wt. % K2O (K), and 0.5-10 wt. % elemental sulfur (S).
  • This fertilizer can be beneficial to provide sufficient nutrients for growth and kernel production, for maximizing yield, and to avoid over fertilization. This can be beneficial in reducing costs associated with applying unnecessary fertilizers and in reducing the burdens and costs of purchasing and distributing multiple fertilizers or creating or purchasing specialty blends.
  • NPKS fertilizers are described.
  • the NPKS fertilizer can include 9-17 wt. % elemental nitrogen (N), 21-25 wt. % P205 (P), 12-22 wt. % K20 (K), and 0.5-10 wt. % elemental sulfur (S).
  • the N, P, K, and S contained therein can be any amount within these ranges.
  • the NPKS fertilizer can include 9, 10, 11, 12, 13, 14, 15, 16, or 17 wt. % N, 21, 22, 23, 24, or 25 wt. % P, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, or 22 wt. % K, and 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 wt. % S.
  • the NPKS fertilizer contains 12-16 wt. % N, 21-24 wt. % P, 15-19 wt. % K, and 3-7 wt. % S. In some particular instances, the NPKS fertilizer contains about 14 wt. % N, about 22 wt. % P, about 17 wt. % K, and about 5 wt. % S.
  • the fertilizer can contain additional nutrients.
  • the fertilizer contains one or more micronutrients, organic additives, additional secondary nutrients, or additional fertilizers.
  • the fertilizer is a fertilizer granule or a coated fertilizer.
  • the fertilizer granule can contain one or more particles.
  • the particles or coated fertilizer can contain a core and one or more layers covering at least a portion of the core.
  • a first portion of the fertilizer can form a core that contains all or a majority of the N, P, K, and S, and a second portion of the fertilizer can form a layer that covers at least a portion of the core (e.g., at least 50, 60, 70, 80, 90, or 100 % of the surface area of the core).
  • the layer is a water repellant layer.
  • the layer can be a coating oil.
  • the coating oil can be an amine based coating oil.
  • the layer can self-assemble during the manufacture of the particle, coated fertilizer, or granule.
  • the particle, coated fertilizer, or granule can be elongated or can be substantially spherical or can be another shape or combinations of shapes.
  • the fertilizer is formulated to fertilize a specific crop.
  • the fertilizer is formulated to fertilize Zea mays.
  • the crop can be fertilized by addition of the fertilizer to the medium or soil surrounding the crop or by application directly to the plant.
  • the crop can be fertilized by addition of the fertilizer as a solid fertilizer or a liquid fertilizer.
  • the fertilizer can be added to a liquid medium for application of the fertilizer.
  • the N, P, K, and S content are provided by one or more nutrient sources in the fertilizer.
  • the N source is urea, an ammonium, monoammonium phosphate (MAP), diammonium phosphate (DAP), and/or ammonium sulfate.
  • the P source is MAP and/or DAP.
  • the K source is sulfate of potash (SOP) and/or (muriate of potash) MOP.
  • the S source is a sulfate, such as ammonium sulfate.
  • the fertilizer is combined in a composition to form a blended fertilizer or a compounded fertilizer.
  • the compositions can include a plurality of the NPKS fertilizer of the present invention mixed with other fertilizers, micronutrients, secondary nutrients, or organic additives.
  • the fertilizers can be particulate in form (e.g., urea, monoammonium phosphate (MAP), diammonium phosphate (DAP), muriate of potash (MOP), and/or sulfate of potash (SOP)).
  • MAP monoammonium phosphate
  • DAP diammonium phosphate
  • MOP muriate of potash
  • SOP sulfate of potash
  • the NPKS fertilizers and additional fertilizers are compatible with each other (e.g., can contact each other without having a chemical reaction take place).
  • the blended or compounded fertilizer can contain in addition to the NPKS fertilizer, a nitrogen based fertilizer, a phosphate -based fertilizer, a potassium- based fertilizer, a urea-based fertilizer, a fertilizer providing nitrogen, phosphorus, and potassium (NPK), diammonium phosphate (DAP), monoammonium phosphate (MAP), single superphosphate (SSP), triple superphosphate (TSP), urea, potassium chloride, potassium sulfate, magnesium sulfate, superphosphates, phosphate rocks, potash, sulfate of potash (SOP), muriate of potash (MOP), kieserite, camallite, magnesite, dolomite, boric acid, B, Cu, Fe, Mn, Mo, Zn, Se, Si, Ca, Mg, S, neem oil, seaweed extract, bio- stimulants, char, ashes from incineration of animal waste or animal tissues, etc., or
  • a process can include (a) combining one or more sources of nitrogen, phosphorous, potassium, and sulfur in a ratio sufficient to produce a fertilizer composition with a fertilizer grade of 9-17 wt. % N, 21-25 wt. % P, 12-22 wt. % K, and 0.5-10 wt. % S; and (b) mixing the one or more sources under conditions sufficient to produce the fertilizer composition.
  • the method can include granulating one or more of the sources or the NPKS fertilizer to form a granulated fertilizer.
  • the method can include coating one or more of the sources and/or coating the NPKS fertilizer to form a coated fertilizer.
  • the method can also include drying the fertilizer, granulated fertilizer, and/or coated fertilizer.
  • the method can further include combining the NPKS fertilizer with one or more additional fertilizers to form a blended or compounded fertilizer.
  • the process to produce the NPKS fertilizer of the present invention includes use of drum granulation technology.
  • the temperature used to dry and/or granulate the fertilizer can be in the range of 60 to 100 °C.
  • the temperature can be 60, 65, 70, 75, 80, 85, 90, 95, and/or 100 °C, or any temperature between 60 and 100 °C.
  • the moisture content of the mixture and/or granulated material can be in the range of 2 to 4 wt. %.
  • the moisture can be 2, 2.5, 3, 3.5, and/or 4 wt. %, or any wt. % therein.
  • the moisture content can be reduced to at or below 1 wt. %.
  • the moisture content can be 1, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1, 0.05, 0.01, 0.005, and/or 0.001, wt. %, or any wt. % therein or below.
  • the NPKS fertilizer, granulated fertilizer, coated fertilizer, or dried fertilizer can have an average mean size range of 2 to 4 mm.
  • the average mean size range can be 2, 2.5, 3, 3.5, and/or 4 mm, or any size therein.
  • the NPKS fertilizer, granulated fertilizer, coated fertilizer, or dried fertilizer can have an average mean crush strength of or more than 2 kg/granule.
  • the average mean crush strength can be 2, 2.5, 3, 3.5, 4, 4.5, and/or 5, or any crush strength therein or more.
  • a method can include applying a plurality of NPKS fertilizers of the present invention to a portion of a soil, a crop, or a combination of the soil and the crop.
  • the crop can be Zea mays.
  • the fertilizer is added to a liquid medium for application to the crop.
  • the soil is at least partially or fully submerged under water (e.g., rice paddy crops) and the fertilizers sink in the water to contact the soil. This can allow for homogenous distribution of the fertilizers to the soil rather than having the fertilizers coalesce together in or on the surface of the water.
  • Aspect 1 is a method of fertilizing Zea mays, the method comprising applying a fertilizer composition to at least one of a soil, a Zea mays organism, or a combination thereof, wherein the fertilizer composition has a fertilizer grade of 9-17 wt. % elemental nitrogen (N), 21-25 wt. % P205 (P), 12-22 wt. % K20 (K), and 0.5-10 wt. % elemental sulfur (S).
  • Aspect 2 is the method of aspect 1, wherein the fertilizer grade comprises 12-16 wt. % N, 21-24 wt. % P, 15-19 wt. % K, and 3-7 wt. % S.
  • Aspect 3 is the method of aspect 1, wherein the fertilizer grade comprises 14 wt. % N, 22 wt. % P, 17 wt. % K, and 5 wt. % S.
  • Aspect 4 is the method of any one of aspects 1 to 3, wherein the soil comprises the
  • Aspect 5 is the method of any one of aspects 1 to 4, wherein the fertilizer composition is a blended or compounded fertilizer.
  • Aspect 6 is the method of any one of aspects 1 to 4, wherein the fertilizer composition is a granulated fertilizer or a coated fertilizer.
  • Aspect 7 is the method of any one of aspects 1 to 6, wherein the fertilizer composition is a coated fertilizer comprising a water repellant coating on the surface of the fertilizer composition.
  • Aspect 8 is the method of any one of aspects 1 to 7, wherein the fertilizer composition further comprises one or more micronutrients, organic additives, additional secondary nutrients, or additional fertilizers.
  • Aspect 9 is a method of making a fertilizer composition with a fertilizer grade comprising 12-16 wt. % elemental nitrogen (N), 21-24 wt. % P205 (P), 15-19 wt. % K20 (K), and 3-7 wt. % elemental sulfur (S), the method comprising: combining one or more sources of nitrogen, phosphorous, potassium, and sulfur in a ratio sufficient to produce a fertilizer composition with a fertilizer grade of 12-16 wt. % N, 21-24 wt. % P, 15-19 wt. % K, and 3-7 wt. % S; and mixing the one or more sources under conditions sufficient to produce the fertilizer composition.
  • Aspect 10 is the method of aspect 9, wherein the fertilizer grade comprises 14 wt. % N, 22 wt. % P, 17 wt. % K, and 5 wt. % S.
  • Aspect 11 is the method of any one of aspects 9 to 10, wherein the fertilizer composition produced is a blended or compounded fertilizer.
  • Aspect 12 is the method of any one of aspects 9 to 10, wherein mixing the sources further comprises granulating one or more of the sources to form a granulated fertilizer, and the method further comprises drying the granulated fertilizer.
  • Aspect 13 is the method of any one of aspects 9 to 10, wherein mixing the sources further comprises coating one or more of the sources to form a coated fertilizer, and wherein the method further comprises drying the coated fertilizer.
  • Aspect 14 is the method of any one of aspects 9 to 13, wherein the fertilizer composition further comprises one or more micronutrients, organic additives, additional secondary nutrients, or additional fertilizers.
  • Aspect 15 is a fertilizer composition with a fertilizer grade comprising 12-16 wt. % elemental nitrogen (N), 21-24 wt. % P205 (P), 15-19 wt. % K20 (K), and 3-7 wt. % elemental sulfur (S).
  • Aspect 16 is the fertilizer composition of aspect 15, wherein the fertilizer composition is formulated to fertilize Zea mays.
  • Aspect 17 is the fertilizer composition of any one of aspects 15 to 16, wherein the fertilizer grade comprises 14 wt. % N, 22 wt. % P, 17 wt. % K, and 5 wt. % S.
  • Aspect 18 is the fertilizer composition of any one of aspects 15 to 17, wherein the fertilizer composition is one or more of a blended fertilizer or a compounded fertilizer.
  • Aspect 19 is the fertilizer composition of any one of aspects 15 to 17, wherein the fertilizer composition is a granulated fertilizer or a coated fertilizer.
  • Aspect 20 is the fertilizer composition of any one of aspects 15 to 19, wherein the fertilizer composition further comprises one or more micronutrients, organic additives, additional secondary nutrients, or additional fertilizers.
  • fertilizer is defined as a material applied to soils or to plant tissues to supply one or more plant nutrients essential or beneficial to the growth of plants and/or stimulants or enhancers to increase or enhance plant growth.
  • fertilizers include materials having one or more of urea, ammonium nitrate, calcium ammonium nitrate, one or more superphosphates, binary NP fertilizers, binary NK fertilizers, binary PK fertilizers, NPK fertilizers, molybdenum, zinc, copper, boron, cobalt, and/or iron.
  • fertilizers include agents that enhance plant growth and/or enhance the ability for a plant to receive the benefit of a fertilizer, such as, but not limited to bio stimulants, urease inhibitors, and nitrification inhibitors.
  • the fertilizer is urea.
  • micronutrient is defined as a chemical element or substance that can be used in trace amounts for the normal growth and development of a plant.
  • micronutrients include B, Cu, Fe, Mn, Mo, Zn, Se, and Si.
  • the term“secondary nutrient” is defined as a chemical element or substance that can be used in moderate amounts for plant growth and are less likely to limit crop growth in comparison to N, P, and K.
  • Non-limiting examples of secondary nutrients include Ca, Mg, and S.
  • the term“organic agent” is defined as a substance that is produced by or part of an organism.
  • Non-limiting examples of organic agents suitable for a fertilizer include neem oil, seaweed extract, bio-stimulants, char, ashes from incineration of animal waste or animal tissues, and diatomaceous earth.
  • the term“granule” can include a solid material. A granule can have a variety of different shapes, non-limiting examples of which include a spherical, a puck, an oval, a rod, an oblong, or a random shape.
  • the terms“about” or“approximately” are defined as being close to as understood by one of ordinary skill in the art. In one non-limiting embodiment, the terms are defined to be within 10%, preferably within 5%, more preferably within 1%, and most preferably within 0.5%.
  • the terms“wt.%,”“vol.%,” or“mol.%,” refers to a weight percentage of a component, a volume percentage of a component, or molar percentage of a component, respectively, based on the total weight, the total volume of material, or total moles, that includes the component. In a non-limiting example, 10 grams of component in 100 grams of the material is 10 wt.% of component.
  • the words“comprising” (and any form of comprising, such as“comprise” and “comprises”),“having” (and any form of having, such as“have” and“has”),“including” (and any form of including, such as“includes” and“include”), or“containing” (and any form of containing, such as“contains” and“contain”) are inclusive or open-ended and do not exclude additional, unrecited elements or method steps.
  • the NPKS fertilizers of the present invention can“comprise,”“consist essentially of,” or “consist of’ particular ingredients, components, compositions, etc. disclosed throughout the specification.
  • a basic and novel characteristic of the NPKS fertilizer of the present invention is the presence of 9-17 wt. % elemental nitrogen (N), 21-25 wt. % P2O5 (P), 12-22 wt. % K2O (K), and 0.5-10 wt. % elemental sulfur (S) and in some instances, 14 wt. % N, 22 wt. % P, 17 wt. % K, and 5 wt. % S.
  • the NPKS fertilizer can be formulated and/or used to fertilize Zea mays.
  • FIG. 1 The Figure is a schematic of a system that can be used to produce NPKS fertilizers of the present invention.
  • the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings. The drawings may not be to scale.
  • the NPKS fertilizer of the present invention can include 9-17 wt. % elemental nitrogen (N), 21-25 wt. % P2O5 (P), 12-22 wt. % K2O (K), and 0.5-10 wt. % elemental sulfur (S).
  • This fertilizer can be particularly beneficial for the specific nutrient uptake of Zea mays and can be used or formulated for Zea mays. However, the fertilizer can be used for other plants as well.
  • the fertilizer can be beneficial to provide sufficient nutrients for growth and kernel production, for maximizing yield, and/or to avoid over fertilization. This can be beneficial in reducing costs associated with applying unnecessary fertilizers and in reducing the burdens and costs of purchasing and distributing multiple fertilizers.
  • the NPKS fertilizer can be produced by using any N, P, K, and/or S source that is suitable as a fertilizer.
  • the NPKS fertilizer is stable and can be a solid or liquid when applied to a crop.
  • NPKS fertilizer compositions are granules and/or coated fertilizers.
  • NPKS fertilizers of the present invention can include 12-16 wt. % N, 21-24 wt. % P, 15-19 wt. % K, and 3-7 wt. % S.
  • the fertilizer contains 14 wt. % N, 22 wt. % P, 17 wt. % K, and 5 wt. % S. This can be beneficial where a Zea mays plant is fertilized and can reduce the amount of material needed to provide nutrients to this crop.
  • the surface of the NPKS fertilizer can comprises a water repellant layer or a layer having another fertilizer or any combination thereof.
  • the layer can be formed on at least a portion of the outer surface of the NPKS fertilizer, and the layer can include an oil, such as an amine based coating oil.
  • the layer can be applied to a NPKS fertilizer core or self-form or self-assemble during the production process of the NPKS fertilizer.
  • the layer can contain a fertilizer in particulate form.
  • the NPKS fertilizer of the present invention can be made using a granulation system shown in The Figure.
  • the Figure is a non-limiting, simplified schematic of a granulator/coating apparatus 100 for producing a NPKS fertilizer granule 104 or a NPKS coated fertilizer 104 and drying the NPKS fertilizer 104 using a heat source 107.
  • the materials of construction, size, and shape of apparatus 100 can be determined using standard engineering practice and/or modeling programs to achieve the maximum flow rates and appropriate contact time.
  • Apparatus 100 can include a rotating drum 113.
  • Container 101 can include source material inlet(s) 102 for introduction of the source material 109 and fertilizer outlet 103.
  • Apparatus 100 may be adapted to move source material 109 and NPKS fertilizer 104 between source material inlet(s) 102 and fertilizer outlet 103.
  • container 101 may include a rotatable section 113 rotatably coupled to the apparatus through large mechanical seals 112, for moving source material 109 and/or fertilizer 104 through a mixing/granulating zone 108, an optional coating zone 110, and/or optional drying zone 111.
  • container 101 is capable of agitating and/or mixing the source material 109 or fertilizer 104, and/or includes an apparatus that can cause such agitation.
  • container 101 may include a rotatable section 113, a rotatable internal container, and/or a section that vibrates.
  • the rotatable section 113 and/or rotatable internal container may contain internal flights and/or be rotated to induce movement of the source material 109 and/or fertilizer 104.
  • Optional coating material can be introduced through the coating material inlet 105.
  • the coating material can be distributed onto the fertilizer 104 by sprayers 106.
  • the source material 109 can be used or designed to produce a fertilizer grade comprising 12-16 wt. % elemental nitrogen (N), 21-24 wt. % P 2 O 5 (P), 15-19 wt.
  • the source material 109 can in some instances be a single source or can be more than one source of nitrogen, phosphorous, potassium, and sulfur.
  • the N source can be urea, an ammonium, monoammonium phosphate (MAP), diammonium phosphate (DAP), and/or ammonium sulfate.
  • the P source can be MAP and/or DAP.
  • the K source can be sulfate of potash (SOP) and/or muriate of potash (MOP).
  • the S source can be a sulfate, such as ammonium sulfate.
  • the conditions of the material exiting the mixing/granulating zone 108 or coating zone 110 can be a semi- wet material or granule, which easily forms“balls when compresses with the hands.” If the material is too dry, then granulation is decreased leading to smaller product fraction in the material exiting the apparatus. If the material is too“wet” (tending towards mud) then there is a risk that the“mud” material will stick to the surfaces of the container, leading to building up on the container surface.
  • Drying the fertilizer can enable agglomeration to form a solid such as a granule or coated fertilizer.
  • the fertilizer 104 is dried or further dried in a drying zone 111.
  • the fertilizer 104 can enter a dryer (dryer) (e.g ., a rotating dryer) to reduce the amount of moisture in the material.
  • the formation of granules can also occur or continue during the drying of the material.
  • the NPKS fertilizer of the present invention can also be included in a blended or compounded fertilizer composition comprising other fertilizers, such as other fertilizer granules or coated fertilizers. Additional fertilizers can be chosen based on the particular needs of certain types of soil, climate, or other growing conditions to maximize the efficacy of the NPKS fertilizer in enhancing plant growth and crop yield.
  • the other fertilizer granules or coated fertilizers can be or can contain urea, Single Super Phosphate (SSP), Triple Super Phosphate (TSP), ammonium sulfate, monoammonium phosphate (MAP), diammonium phosphate (DAP), muriate of potash (MOP), and/or sulfate of potash (SOP), and the like.
  • SSP Single Super Phosphate
  • TSP Triple Super Phosphate
  • MAP monoammonium phosphate
  • DAP diammonium phosphate
  • MOP muriate of potash
  • SOP sulfate of potash
  • the NPKS fertilizers of the present invention can be used in methods of increasing the amount of nitrogen, phosphorus, potassium, and/or sulfur in soil and of enhancing plant growth and/or yield. Such methods can include applying to the soil, to a plant organism, and/or to water an effective amount of a composition comprising the NPKS fertilizers of the present invention.
  • the method may include increasing the growth and yield of crops, trees, ornamentals, etc. such as, for example, Zea mays, palm, coconut, rice, wheat, barley, oats, and soybeans.
  • the method can include applying NPKS fertilizers of the present invention to at least one of a soil, an organism, a liquid carrier, a liquid solvent, etc.
  • Non-limiting examples of plants that can benefit from the fertilizer of the present invention include vines, trees, shrubs, stalked plants, ferns, etc.
  • the plants may include orchard crops, vines, ornamental plants, food crops, timber, and harvested plants.
  • the plants may include Gymnosperms, Angiosperms, and/or Pteridophytes.
  • the Gymnosperms may include plants from the Araucariaceae, Cupressaceae, Pinaceae, Podocarpaceae,
  • the Angiosperms may include plants from the Aceraceae, Agavaceae, Anacardiaceae, Annonaceae, Apocynaceae, Aquifoliaceae, Araliaceae, Arecaceae, Asphodelaceae, Asteraceae, Berberidaceae,
  • Betulaceae Bignoniaceae, Bombacaceae, Boraginaceae, Burseraceae, Buxaceae,
  • Melastomataceae Meliaceae, Moraceae, Moringaceae, Muntingiaceae, Myoporaceae, Myricaceae, Myrsinaceae, Myrtaceae, Nothofagaceae, Nyctaginaceae, Nyssaceae, Olacaceae, Oleaceae, Oxalidaceae, Pandanaceae, Papaveraceae, Phyllanthaceae, Pittosporaceae, Platanaceae, Poaceae, Polygonaceae, Proteaceae, Punicaceae, Rhamnaceae, Rhizophoraceae, Rosaceae, Rubiaceae, Rutaceae, Salicaceae, Sapindaceae, Sapotaceae, Simaroubaceae, Solanaceae, Staphyleaceae, Sterculiaceae, Strelitziaceae, Styracaceae, Surianacea
  • compositions comprising the NPKS fertilizers of the present invention can be ascertained by measuring the amount of nitrogen, phosphorus, potassium, and/or sulfur in the soil at various times after applying the fertilizer composition to the soil, to the plant organism, and/or to water. It is understood that different soils have different characteristics, which can affect the stability of the nutrients in the soil.
  • the effectiveness of a fertilizer composition can also be directly compared to other fertilizer compositions by doing a side-by-side comparison in the same soil under the same conditions.
  • NPKS fertilizer of the present invention can be formulated to meet the nutrient uptake needs of Zea mays. This can allow the fertilizer to be used for this crop more versatilely in various regions of the world and under a wider range of soil/environment conditions than other fertilizers. This can be especially beneficial to reduce or eliminate the need to test the soil and to reduce or eliminate the need to purchase or create specialty fertilizer blends.
  • the NPKS fertilizer can comprise other fertilizer actives and micronutrients. These could be added with the sources of N, P, K, and/or S at the beginning of the production process or can be added at any later stage.
  • Non-limiting examples of additional additives can be micronutrients, primary nutrients, and/or secondary nutrients.
  • a micronutrient is an inorganic or organometallic compound such as boron, copper, iron, chloride, manganese, molybdenum, nickel, or zinc.
  • a primary nutrient is a material that can deliver nitrogen, phosphorous, and/or potassium to a plant. Nitrogen-containing primary nutrients may include urea, ammonium nitrate, ammonium sulfate, diammonium phosphate, monoammonium phosphate, urea-formaldehyde, or combinations thereof.
  • a secondary nutrient is a substance that can deliver calcium, magnesium, and/or sulfur to a plant.
  • Secondary nutrients may include lime, gypsum, superphosphate, or a combination thereof.
  • the NPKS fertilizer can contain calcium sulfate, potassium sulfate, magnesium sulfate, or a combination thereof.
  • the NPKS fertilizer can comprise one or more inhibitors.
  • the inhibitor can be a urease inhibitor or a nitrification inhibitor, or a combination thereof.
  • NPKS fertilizers can comprise a urease inhibitor and a nitrification inhibitor.
  • the inhibitor can be a urease inhibitor.
  • Suitable urease inhibitors include, but are not limited to, N-(n-butyl) thiophosphoric triamide (NBTPT) and phenylphosphorodiamidate (PPDA).
  • NBTPT N-(n-butyl) thiophosphoric triamide
  • PPDA phenylphosphorodiamidate
  • the NPKS fertilizer can comprise NBTPT or PPDA, or a combination thereof.
  • the inhibitor can be a nitrification inhibitor.
  • Suitable nitrification inhibitors include, but are not limited to, 3,4-dimethylpyrazole phosphate (DMPP), dicyandiamide (DCD), thiourea (TU), 2-Chloro-6-(trichloromethyl)-pyridine (Nitrapyrin), 5- Ethoxy-3-trichloromethyl -1, 2, 4-thiadiazol (Terrazole), 2-amino 4-chloro 6-methyl pyrimidine (AM), 2-mercaptobenzothiazole (MBT), or 2-sulfanilamidothiazole (ST), and any combination thereof.
  • DMPP 3,4-dimethylpyrazole phosphate
  • DCD dicyandiamide
  • TU thiourea
  • 2-Chloro-6-(trichloromethyl)-pyridine Non-thiadiazol
  • AM 2-amino 4-chloro 6-methyl pyrimidine
  • MTT 2-mercaptobenzothiazole
  • ST 2-sulfanilamidothiazole
  • nitrification inhibitor can comprise DMPP, DCD, TU, Nitrapyrin, Terrazole, AM, MBT or ST, or a combination thereof.
  • the NPKS fertilizer can comprise NBTPT, DMPP, TU, DCD, PPDA, Nitrapyrin, Terrazole, AM, MBT, or ST or a combination thereof.
  • Grain yield at Hassan Location Grain yield of maize in Test Grade treatments of the experiment were significantly different both at five % and one % level of significance as shown in Table 1 over Ti. All the Test Grade treatments were on par with each other. The highest grain yield of 73.2 q ha-1 was recorded in Tr, (Test Grade @ 400 kg ha 1 ) followed by 72.9 q ha 1 in T3 (Test Grade @ 250 kg ha 1 ). The lowest grain yield of 35.6 q ha 1 was obtained in Ti (N0P0K0, i.e. without fertilizer).
  • Grain yield at Mandya Location Grain yield of maize in Test Grade treatments was significantly different both at five % and one % level of significance as shown in Table 2 over Ti. All the Test Grade treatments are on par with each other. The highest grain yield of 76.93 q ha 1 was recorded in T ⁇ (Test Grade @ 400 kg ha 1 ) followed by 76.86 q ha 1 in T7 (Test Grade @ 450 kg ha 1 ). The lowest grain yield of 40.68 q ha 1 was obtained in Ti (N0P0K0, i.e. without fertilizer).
  • Properties of the fertilizers disclosed herein can be tested.
  • the purity of the components can be cross-checked by NMR, HPLC, and LCMS analysis.
  • Crush strength can be measured for some of the samples using a crush strength analyzer to determine the strength of the fertilizers.
  • the stability of any inhibitors in the fertilizers can be measured using HPLC and LCMS.
  • the total moisture content of fertilizers can be measured using a moisture analyzer.
  • the stability in soil, release rates, nitrogen volatilization, and nitrogen transformation (nitrification) can be measured in different soils and compared to other NPKS fertilizers and to products on the market.
  • a soil that is representative of a broader class of soil types can be used to measure the properties of the fertilizer. Greenville soil and Crowley soil are two such representative soils. Other soils may also be used for the experiments described herein.
  • Greenville soil or Greenville clay-loam soil is typical of weathered tropical ultisols and is found in warm humid environments.
  • the soil is classified as fine, kaolinitic, thermic Rhodic Kandiudults with a pH of 6.1-6.
  • the soil has organic matter of 1.4%, total amount of nitrogen is about 0.06%, and the CEC is 5.2 cmol/kg. Accordingly, the soil has a low content of organic matter, and also low availability of sulfur and nitrogen. Thus, the soil is ideal for nitrogen and sulfur trials with fertilizers.
  • Crowley soil consists of very deep, somewhat poorly drained, very slowly permeable soils that formed in clayey fluviomarine deposits of the Pleistocene age.
  • the soil exists in nearly level to very gently sloping soils and occurs on flat coastal plains terraces.
  • the slope is dominantly less than 1 percent but ranges to up to 3 percent.
  • the mean annual precipitation is about 1549 mm (61 in.) and the mean annual air temperature is about 20 0 C (68 °F).
  • the soil is fine, smectitic, and thermic Typic Albaqualfs.
  • Nitrogen volatilization can be determined as the percentage of nitrogen loss via ammonia volatilization as compared to the amount of nitrogen applied or as the absolute mass of nitrogen lost via ammonia volatilization.
  • Compatibility and stability can be measured by combining the NPKS fertilizers of the present invention with other fertilizers such as urea, DAP, MAP, urea, MOP, and SOP.
  • Compatible and stabile fertilizers can be used to provide a range of nitrogen-phosphorus- potassium-sulfur grades.
  • Benefits to crops, such as Zea mays can be determined and compared to other fertilizers
  • Non-limiting properties of the crop that can be tested include growth rate, root mass, ear and kernel size, mass, and number, date to maturity, drought tolerance, heat and cold tolerance, yield, etc.
  • SEM scanning electron microscope

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

L'invention concerne un engrais contenant de l'azote (N), du P2O5 (P), du K2O (K), et du soufre (S), ainsi que des procédés de fabrication et d'utilisation de ce dernier. L'engrais NPKS peut contenir de 9 à 17 % en poids de N, de 21 à 25 % en poids de P, de 12 à 22 % en poids de K et de 0,5 à 10 % en poids de S. L'engrais NPKS peut être utilisé ou préparé pour une fertilisation de maïs..
PCT/IB2019/059883 2018-11-20 2019-11-18 Procédés et compositions d'engrais pour le traitement d'une plante et milieu de croissance de plante WO2020104914A1 (fr)

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WO2022144685A1 (fr) * 2020-12-31 2022-07-07 Sabic Global Technologies B.V. Granules d'engrais ternaire loam sablo-argileux acidifiés pour la fertirrigation
CN114853524A (zh) * 2022-04-19 2022-08-05 广东省林业科学研究院 一种适用于铃儿花幼苗期施肥的氮磷钾肥料及其应用
US11999662B2 (en) 2017-05-17 2024-06-04 SABIC Agri-Nutrients Company Anti-caking fertilizer compositions

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11999662B2 (en) 2017-05-17 2024-06-04 SABIC Agri-Nutrients Company Anti-caking fertilizer compositions
WO2022144685A1 (fr) * 2020-12-31 2022-07-07 Sabic Global Technologies B.V. Granules d'engrais ternaire loam sablo-argileux acidifiés pour la fertirrigation
CN114853524A (zh) * 2022-04-19 2022-08-05 广东省林业科学研究院 一种适用于铃儿花幼苗期施肥的氮磷钾肥料及其应用

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