WO2020070347A1 - Procedimiento de obtención de un fertilizante fosfatado granulado y fertilizante fosfatado así obtenido - Google Patents
Procedimiento de obtención de un fertilizante fosfatado granulado y fertilizante fosfatado así obtenidoInfo
- Publication number
- WO2020070347A1 WO2020070347A1 PCT/ES2018/070644 ES2018070644W WO2020070347A1 WO 2020070347 A1 WO2020070347 A1 WO 2020070347A1 ES 2018070644 W ES2018070644 W ES 2018070644W WO 2020070347 A1 WO2020070347 A1 WO 2020070347A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- granules
- phosphorus
- fertilizer
- phosphoric
- granulated
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B19/00—Granulation or pelletisation of phosphatic fertilisers, other than slag
-
- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
Definitions
- the present invention relates to a process for obtaining a granular phosphate fertilizer from phosphoric rock, as well as to the phosphate fertilizer obtained by said process.
- the invention provides a process for obtaining a granular phosphate fertilizer, as a source of phosphorus, for direct application in agriculture, from natural raw materials such as phosphoric rock, a source of natural carbon, a metabolic inducer of solubilizing microorganisms of phosphorus and water.
- the biological fertilizer obtained according to the procedure of the invention is a product rich in available phosphorus (assimilable) and can be used as an organic amendment in agricultural and / or forest soils or it can be mixed with other materials to obtain a complex fertilizer product or a fertilizer organo-mineral (mixture or combination of mineral and organic fertilizers).
- Phosphorus as an essential nutrient for plants, can only be used if it is in assimilable form.
- soluble phosphoric fertilizers when soluble phosphoric fertilizers are applied with a view to enriching the phosphorous content of the soil solution, most of the time it changes to less soluble forms, being retained or fixed, making it unusable by the plant.
- This phenomenon varies between the different soils and regions of the world, but, where it is intense, doses of phosphorus high enough to saturate the fixation points of this nutrient and maintain an adequate concentration of it in the soil solution or use amendments should be applied. that decrease the phosphorus binding capacity (Sánchez, 1976).
- a small concentration of phosphorus in the soil solution is generally adequate for the normal development of plants.
- Fox and Kamprath (1970) and Barber (1995) have suggested that a concentration of 0.2 ppm phosphorus is sufficient for optimal growth.
- the concentration of phosphorus in the soil solution that is in contact with the roots must be continually renewed throughout the growth cycle.
- Phosphoric rock deposits exist throughout the world and some are exploited mainly as raw material for the production of water-soluble phosphate fertilizers (FAO BULLETIN 13: FERTILIZERS AND VEGETABLE NUTRITION, 2007, ISBN 978-92-5-305030-7).
- phosphoric rocks are the commercial source of phosphorus used as a raw material for the manufacture of phosphate fertilizers and other chemicals. Unlike other basic products such as iron, copper, and sulfur, phosphoric rocks have little opportunity for replacement or recycling. They occupy the second place (excluding coal and hydrocarbons) in gross weight and volume in international trade. The fertilizer industry consumes about 90 percent of the world's production of phosphoric rock.
- Sulfuric acid and phosphoric rock are the raw materials for the production of simple superphosphate and phosphoric acid.
- Phosphoric acid is an important intermediate product to produce triple superphosphate and ammonium phosphates.
- High-concentration NPK compound fertilizers currently form the main basis of the global fertilizer industry (Engelstad and Hellums, 1993; UNIDO and IFDC, 1998).
- the phosphoric rocks of sedimentary origin are suitable for direct application because they consist of widely open and weakly consolidated aggregates of microcrystals with a relatively large specific area. They present a considerable proportion of isomorphic substitution in the crystal lattice and contain accessory minerals and impurities in varying amounts and proportions.
- Various authors have indicated that these rocks are suitable for direct application to soils under certain conditions (Khasawneh and Dol ⁇ , 1978; Chien, 1992; Chien and Friesen, 1992; Chien and Van Kauwenbergh, 1992; Chien and Menon, 1995b; Rajan et al., 1996; Zapata, 2003).
- the practice of direct application of various sources of phosphoric rocks as fertilizers has many advantages:
- Phosphoric rocks are natural minerals that need minimal metallurgical processing. The direct application of phosphoric rocks avoids the traditional process of wet acidification to produce water soluble phosphate fertilizers and avoids the production cycle of polluting wastes such as phospho-gypsum and greenhouse gases, resulting in energy savings and protecting the environment from industrial pollution. • As natural products, phosphoric rocks can be used in organic farming.
- phosphoric rocks are sources of various nutritive elements in addition to phosphorous. They are commonly applied to improve the phosphoric level of the soil, but when they are solubilized they also release other nutrients present in the rock, improving the biological activity of the soil and the accumulation of carbon in the soil, helping to improve its physical and chemical properties. In this way, phosphoric rocks play an important role contributing to the improvement of soil fertility
- phosphate fertilizers of normal superphosphate or simple superphosphate are obtained (product obtained by reaction of the crushed mineral phosphate with sulfuric acid and which contains, as essential components, monocalcium phosphate and calcium sulfate9 or triple superphosphate (obtained by reaction of the crushed mineral phosphate with phosphoric acid and containing, as an essential component, monocalcium phosphate).
- biological processes represent significant energy savings compared to chemical methods and, at the same time, they are much less aggressive from an environmental point of view.
- anaerobic microbial fermentation must be carried out from different sources of phosphorus (see for example document US2008 / 0105018 A1), which which makes it necessary to have specific industrial facilities, such as fermentation reactors, which represent a significant investment both in assets and in high-cost raw materials (see for example patent application EP1698595 A1).
- the present invention solves the mentioned disadvantages of the procedures known from the current state of the art, providing a process for obtaining a granular phosphate fertilizer, as a phosphorous source, for direct application in agriculture, from natural raw materials such as phosphoric rock , a natural source of carbon, a metabolic inducer of phosphorus-solubilizing microorganisms and water, optionally together with other additional phosphorous-solubilizing microorganisms.
- the invention relates to a process for obtaining a granular phosphate fertilizer from natural raw materials such as phosphoric rock, a natural carbon source, such as lenonardite, coal, anthracite, lignite or the like, a metabolic inducer of phosphorus-solubilizing microorganisms and water, optionally together with other additional phosphorus-solubilizing microorganisms.
- natural raw materials such as phosphoric rock, a natural carbon source, such as lenonardite, coal, anthracite, lignite or the like
- a metabolic inducer of phosphorus-solubilizing microorganisms and water optionally together with other additional phosphorus-solubilizing microorganisms.
- the method of the invention optionally allows the incorporation of phosphorus-solubilizing microorganisms, as well as organic matter to accommodate them, and inducers that enhance the solubilization of phosphorus by microorganisms already present in the soil.
- the chemical action of strong acids is replaced by the biological action of microorganisms regarding the desired soluble phosphorus effect.
- the elimination of the strong acid itself from the procedure allows the incorporation of metabolic inductors for the phosphorus-solubilizing microorganisms present in the soil, due to the pH of the product obtained by said procedure.
- the invention relates to a biological fertilizer obtained by said procedure, a fertilizer that contains a high proportion of available phosphorus and suitable for use as an organic amendment in agricultural and forest soils and / or to be mixed with other materials. in order to obtain an organo-mineral fertilizer.
- the invention provides a process for obtaining a granulated phosphate fertilizer that includes the steps of: i) Granulating in a ground phosphoric rock granulator with a particle size between 100 and 500 pm and a humidity between 1 and 2%, a natural source of carbon in the ground state with a particle size between 0.1 and 1 mm and a humidity of 25 to 35%, a metabolic inducer of microorganisms that solubilize phosphorous and water;
- the starting materials are introduced into the granulator in a proportion of 50-80% by weight of phosphoric rock, 20-40% by weight of a natural carbon source, a metabolic inducer of phosphorus-solubilizing microorganisms in a proportion of between 3% and 7% and water in a proportion by weight of at least 10%.
- the metabolic inducer is provided to promote the growth of phosphorus-solubilizing microorganisms, both those present in the soil, and those optionally provided in stage vii) of the procedure, and with it, improve the solubilization of phosphorus by these in the granule.
- metabolic inducers can be selected from known metabolic inducers, such as amino acids, monosaccharides, disaccharides and natural organic acids, for example citric acid, gluconic acid or lactic acid.
- the metabolic inducers are preferably applied as liquids to the granules and in a proportion of between 5% and 7%, sufficient for the biostimulation of the microorganisms, but insufficient for the direct solubilization of phosphorus.
- the first stage of drying ⁇ i) of the granulate is carried out by means of a hot air stream progressively heated from 50 ° C to 290 ° C. This progressive heating, without the use of vein burners and flame front, allows a gradual dissipation of moisture, avoiding rapid water vaporization, which can cause the granules to break or crack.
- the passage of a dry air stream at room temperature allows a progressive cooling of the granules and facilitates a first curing thereof, giving it a certain hardness and avoiding its agglomeration or caking.
- the phosphoric rock is selected from a phosphoric rock with the following characteristics:
- Phosphoric rocks with these characteristics come, for example, from Morocco and Western Sahara.
- the natural carbon source is selected from Leonardite, with the following characteristics:
- the invention also refers to the biological fertilizer obtained by said procedure, a fertilizer that contains a high proportion of available phosphorus and suitable for use as an organic amendment in agricultural and forest soils and / or to be mixed with other materials in order to obtain an organo-mineral fertilizer.
- the phosphate fertilizer granules obtained contain 25% of total P 2 O 5 with humic acids and have a high hardness, much higher than that obtained in direct granulation processes without acid, between 6 and 15 times higher, and close to obtained with known acid granulation processes.
- hardness is resistance to breakage, abrasion and impact.
- a high hardness prevents the fertilizer granules from fracturing during the handling, storage and distribution processes and its resistance to abrasion prevents the formation of dust.
- This variable of hardness of a granule is of vital importance in granulated products, since these are racked in different stages until they are dosed, stages during which the granule can deteriorate due to low hardness.
- the invention also provides the use of the granulated phosphate fertilizer obtained according to the process of the invention as an organic amendment in agricultural and forest soils and / or to be mixed with other materials in order to obtain complex fertilizer product or an organo-mineral fertilizer.
- the field dosage of the granulated phosphate fertilizer depends on the type of crop, for example for a cereal between 150 kg / ha and 300 kg / ha and for corn between 500 kg / ha and 700 kg / ha.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Description
Claims
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MA53796A MA53796B1 (fr) | 2018-10-05 | 2018-10-05 | Procédé d'obtention d'un engrais phosphaté granuleux et engrais phosphaté ainsi obtenu |
PCT/ES2018/070644 WO2020070347A1 (es) | 2018-10-05 | 2018-10-05 | Procedimiento de obtención de un fertilizante fosfatado granulado y fertilizante fosfatado así obtenido |
US17/276,942 US20220033320A1 (en) | 2018-10-05 | 2018-10-05 | Method for obtaining a granulated phosphate fertiliser and phosphate fertiliser obtained |
JP2021512909A JP7128349B2 (ja) | 2018-10-05 | 2018-10-05 | 粒状リン酸肥料を得る方法 |
MX2021003857A MX2021003857A (es) | 2018-10-05 | 2018-10-05 | Procedimiento de obtencion de un fertilizante fosfatado granulado y fertilizante fosfatado asi obtenido. |
AU2018444436A AU2018444436B2 (en) | 2018-10-05 | 2018-10-05 | Method for obtaining a granulated phosphate fertiliser and phosphate fertiliser obtained |
CN201880098370.XA CN112789260A (zh) | 2018-10-05 | 2018-10-05 | 用于获得粒状磷酸盐肥料的方法和所获得的磷酸盐肥料 |
BR112021004653-4A BR112021004653A2 (pt) | 2018-10-05 | 2018-10-05 | método de obtenção de um fertilizante fosfatado granulado e fertilizante fosfatado assim obtido |
EP18936209.8A EP3862340B1 (en) | 2018-10-05 | 2018-10-05 | Method for obtaining a granulated phosphate fertiliser and phosphate fertiliser obtained |
PT189362098T PT3862340T (pt) | 2018-10-05 | 2018-10-05 | Método para obter um fertilizante fosfatado granulado e fertilizante fosfatado obtido |
CA3112312A CA3112312A1 (en) | 2018-10-05 | 2018-10-05 | Method for obtaining a granulated phosphate fertiliser and phosphate fertiliser obtained |
ES18936209T ES2941281T3 (es) | 2018-10-05 | 2018-10-05 | Método para la obtención de un fertilizante de fosfato granulado y fertilizante de fosfato obtenido |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2018/070644 WO2020070347A1 (es) | 2018-10-05 | 2018-10-05 | Procedimiento de obtención de un fertilizante fosfatado granulado y fertilizante fosfatado así obtenido |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020070347A1 true WO2020070347A1 (es) | 2020-04-09 |
Family
ID=70055494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2018/070644 WO2020070347A1 (es) | 2018-10-05 | 2018-10-05 | Procedimiento de obtención de un fertilizante fosfatado granulado y fertilizante fosfatado así obtenido |
Country Status (12)
Country | Link |
---|---|
US (1) | US20220033320A1 (es) |
EP (1) | EP3862340B1 (es) |
JP (1) | JP7128349B2 (es) |
CN (1) | CN112789260A (es) |
AU (1) | AU2018444436B2 (es) |
BR (1) | BR112021004653A2 (es) |
CA (1) | CA3112312A1 (es) |
ES (1) | ES2941281T3 (es) |
MA (1) | MA53796B1 (es) |
MX (1) | MX2021003857A (es) |
PT (1) | PT3862340T (es) |
WO (1) | WO2020070347A1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021240028A1 (es) * | 2020-05-28 | 2021-12-02 | Fertinagro Biotech, S.L. | Procedimiento de fabricación industrial de fertilizantes granulados |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3131441A1 (en) * | 2019-03-27 | 2020-10-01 | Fertinagro Biotech, S.L. | Fertilising composition which includes a plant-assimilable phosphorus and calcium potentiator and use thereof |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050039509A1 (en) * | 2002-09-27 | 2005-02-24 | Muma Stephen C. | Phosphate replacement fertilizers |
ES2234417A1 (es) | 2003-10-24 | 2005-06-16 | Probelte S.A. | Nuevo fertilizante biologico y procedimiento de obtencion. |
EP1698595A1 (en) | 2003-11-21 | 2006-09-06 | Ebara Corporation | Method of formation/recovery of magnesium ammonium phosphate and apparatus therefor |
CN101066897A (zh) | 2007-05-25 | 2007-11-07 | 南京农业大学 | 一种能溶解土壤磷酸钙的k3菌株及其微生物有机肥料 |
US20080105018A1 (en) | 2006-11-06 | 2008-05-08 | Sci Protek, Inc. | Methods of generating phosphorus fertilizers through the utilization of microbial fermentation technology |
CN101186879A (zh) | 2007-12-05 | 2008-05-28 | 中国科学院南京土壤研究所 | 农业废弃物堆肥化三元微生物复合菌剂 |
CN101429059A (zh) | 2008-12-11 | 2009-05-13 | 张庆国 | 一种绿色有机农作物微生物菌肥及其制造方法 |
CN101429071A (zh) * | 2008-12-09 | 2009-05-13 | 山东农业大学 | 一种非酸化制备高效磷肥的方法 |
WO2009070966A1 (en) | 2007-11-26 | 2009-06-11 | Foshan Jinkuizi Plant Nutriment Co., Ltd. | Microorganisms, microbial phosphate fertilizers and methods for preparing such microbial phosphate fertilizers |
CN101468924A (zh) | 2007-12-28 | 2009-07-01 | 鞍钢实业申丰生物工程有限公司 | 生物有机肥及其生产方法 |
CN101905982A (zh) * | 2010-07-02 | 2010-12-08 | 云南华卿亿安生物工程有限公司 | 中低品位磷矿制备生物磷肥 |
CN107043313A (zh) * | 2016-02-05 | 2017-08-15 | 广西南亚热带农业科学研究所 | 一种金花茶树生物种植肥料及其制备方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB596788A (en) * | 1943-10-29 | 1948-01-12 | Davison Chemical Corp | Improved process for the manufacture of granulated superphosphate |
US2912317A (en) * | 1957-08-12 | 1959-11-10 | Int Minerals & Chem Corp | Granular fertilizer and process of producing same |
US2987263A (en) * | 1959-02-16 | 1961-06-06 | William R Senn | Apparatus for granulating phosphate rock fertilizer or the like |
US5256544A (en) * | 1992-01-27 | 1993-10-26 | Eg&G Idaho, Inc. | Microbial solubilization of phosphate |
JPH0818891B2 (ja) * | 1992-10-16 | 1996-02-28 | 株式会社荏原総合研究所 | リン酸肥料の製造方法及び装置 |
CN1103060A (zh) * | 1993-11-13 | 1995-05-31 | 张令玉 | 高能、长效微生物肥料及其制法 |
US5912398A (en) * | 1995-06-15 | 1999-06-15 | Lockheed Idaho Technologies Company | Biomediated continuous release phosphate fertilizer |
CN101973536B (zh) * | 2010-09-17 | 2013-02-06 | 张兴华 | 磷精矿粉造球生产黄磷的制备方法 |
NZ589461A (en) * | 2010-11-24 | 2011-02-25 | Christopher Copplestone | Phosphate rock and sulphur based fertiliser for farming or horticultural applications |
-
2018
- 2018-10-05 WO PCT/ES2018/070644 patent/WO2020070347A1/es active Application Filing
- 2018-10-05 CN CN201880098370.XA patent/CN112789260A/zh active Pending
- 2018-10-05 ES ES18936209T patent/ES2941281T3/es active Active
- 2018-10-05 AU AU2018444436A patent/AU2018444436B2/en active Active
- 2018-10-05 EP EP18936209.8A patent/EP3862340B1/en active Active
- 2018-10-05 JP JP2021512909A patent/JP7128349B2/ja active Active
- 2018-10-05 CA CA3112312A patent/CA3112312A1/en active Pending
- 2018-10-05 MA MA53796A patent/MA53796B1/fr unknown
- 2018-10-05 PT PT189362098T patent/PT3862340T/pt unknown
- 2018-10-05 BR BR112021004653-4A patent/BR112021004653A2/pt active Search and Examination
- 2018-10-05 MX MX2021003857A patent/MX2021003857A/es unknown
- 2018-10-05 US US17/276,942 patent/US20220033320A1/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050039509A1 (en) * | 2002-09-27 | 2005-02-24 | Muma Stephen C. | Phosphate replacement fertilizers |
ES2234417A1 (es) | 2003-10-24 | 2005-06-16 | Probelte S.A. | Nuevo fertilizante biologico y procedimiento de obtencion. |
EP1698595A1 (en) | 2003-11-21 | 2006-09-06 | Ebara Corporation | Method of formation/recovery of magnesium ammonium phosphate and apparatus therefor |
US20080105018A1 (en) | 2006-11-06 | 2008-05-08 | Sci Protek, Inc. | Methods of generating phosphorus fertilizers through the utilization of microbial fermentation technology |
CN101066897A (zh) | 2007-05-25 | 2007-11-07 | 南京农业大学 | 一种能溶解土壤磷酸钙的k3菌株及其微生物有机肥料 |
WO2009070966A1 (en) | 2007-11-26 | 2009-06-11 | Foshan Jinkuizi Plant Nutriment Co., Ltd. | Microorganisms, microbial phosphate fertilizers and methods for preparing such microbial phosphate fertilizers |
US20110100078A1 (en) * | 2007-11-26 | 2011-05-05 | Foshan Jinkuizi Plant Nutriment Co., Ltd. | Microorganisms, microbial phosphate fertilizers and methods for preparing such microbial phosphate fertilizers |
CN101186879A (zh) | 2007-12-05 | 2008-05-28 | 中国科学院南京土壤研究所 | 农业废弃物堆肥化三元微生物复合菌剂 |
CN101468924A (zh) | 2007-12-28 | 2009-07-01 | 鞍钢实业申丰生物工程有限公司 | 生物有机肥及其生产方法 |
CN101429071A (zh) * | 2008-12-09 | 2009-05-13 | 山东农业大学 | 一种非酸化制备高效磷肥的方法 |
CN101429059A (zh) | 2008-12-11 | 2009-05-13 | 张庆国 | 一种绿色有机农作物微生物菌肥及其制造方法 |
CN101905982A (zh) * | 2010-07-02 | 2010-12-08 | 云南华卿亿安生物工程有限公司 | 中低品位磷矿制备生物磷肥 |
CN107043313A (zh) * | 2016-02-05 | 2017-08-15 | 广西南亚热带农业科学研究所 | 一种金花茶树生物种植肥料及其制备方法 |
Non-Patent Citations (2)
Title |
---|
FAO BULLETIN 13: FERTILISERS AND VEGETABLE NUTRITION, 2007, ISBN: 978-92-5-305030-7 |
See also references of EP3862340A4 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021240028A1 (es) * | 2020-05-28 | 2021-12-02 | Fertinagro Biotech, S.L. | Procedimiento de fabricación industrial de fertilizantes granulados |
CN115697945A (zh) * | 2020-05-28 | 2023-02-03 | 费尔蒂纳格罗生物技术有限公司 | 工业生产颗粒肥料的方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3862340A1 (en) | 2021-08-11 |
BR112021004653A2 (pt) | 2021-06-01 |
AU2018444436A1 (en) | 2021-03-18 |
EP3862340A4 (en) | 2022-05-25 |
JP2022501295A (ja) | 2022-01-06 |
MA53796B1 (fr) | 2023-03-31 |
US20220033320A1 (en) | 2022-02-03 |
ES2941281T3 (es) | 2023-05-19 |
CA3112312A1 (en) | 2020-04-09 |
CN112789260A (zh) | 2021-05-11 |
MX2021003857A (es) | 2021-04-29 |
EP3862340B1 (en) | 2023-02-08 |
PT3862340T (pt) | 2023-05-04 |
AU2018444436B2 (en) | 2024-06-27 |
MA53796A (fr) | 2022-01-12 |
JP7128349B2 (ja) | 2022-08-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Biswas et al. | Rock phosphate enriched compost: an approach to improve low-grade Indian rock phosphate | |
Cui et al. | Revitalizing coastal saline-alkali soil with biochar application for improved crop growth | |
ES2980282T3 (es) | Fertilizante NPK-Si-humato, método para la producción y uso del mismo | |
CN103756684A (zh) | 一种具有多重效益的土壤调理剂 | |
Mao et al. | Effect of 17 years of organic and inorganic fertilizer applications on soil phosphorus dynamics in a rice–wheat rotation cropping system in eastern China | |
ES2941281T3 (es) | Método para la obtención de un fertilizante de fosfato granulado y fertilizante de fosfato obtenido | |
Fan et al. | Application of various high-density organic materials in soil promotes germination and increases nutrient content of wheat | |
TWI787397B (zh) | NPK-Si肥料、其製造方法及用途 | |
CN102503701A (zh) | 抑制番茄青枯病的组合物及其应用 | |
Swami et al. | Physico-chemical and microbiological properties of acid Inceptisol as influenced by INM practices under cabbage (Brassica oleracea L. var. capitata) production | |
Abdoli | Sustainable Use of Sewage Sludge in Soil Fertility and Crop Production | |
JOGHAN et al. | Comparison among different integrated nutrition management for soil micro and macro elements after winter wheat harvesting and yield | |
CN1196345A (zh) | 腐殖酸与碳铵有机无机配方肥 | |
AU2021408092B2 (en) | Further improved fertilizer | |
Gondek | Zinc and cadmium accumulation in maize [Zea mays L.] and the concentration of mobile forms of these metals in soil after application of farmyard manure and sewage sludge | |
CN106986702A (zh) | 碳能生物肥及其制备方法 | |
Huang et al. | Mercapto-palygorskite efficiently immobilizes cadmium in alkaline soil and reduces its accumulation in wheat plants: A field study | |
KR100787020B1 (ko) | 광물성 복합비료기능이 구비된 토양개량제 | |
El-Tawab et al. | Improving Salt-Affected Soils for Enhanced Fodder Beet Productivity: Effects of Soil Conditioners and Tillage Techniques | |
Amin | Using Bone Char as a Renewable Resource of Phosphate Fertilizers in Sustainable Agriculture and its Effects on Phosphorus Transformations and Remediation of Contaminated Soils as well as the Growth of Plants | |
Nourbakhsh et al. | Arginine ammonification and L‐glutaminase assays as rapid indices of corn nitrogen availability | |
Aswitha et al. | Bioactivation of Legacy Phosphorus in Calcareous Soil and its Impact on Maize Yield | |
Muhawish et al. | Agronomic Effectiveness of a New Formula of Phosphate Fertilizer II-Residual Agronomic Effectiveness | |
KR20190068871A (ko) | 제오라이트를 포함하는 염해지용토양개량제조성물 | |
BR102017000646A2 (pt) | processo de produção de fertilizante organomineral fluído em suspensão homogênea e produto obtido |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18936209 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2021512909 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 3112312 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2018444436 Country of ref document: AU Date of ref document: 20181005 Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112021004653 Country of ref document: BR |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2018936209 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2018936209 Country of ref document: EP Effective date: 20210506 |
|
ENP | Entry into the national phase |
Ref document number: 112021004653 Country of ref document: BR Kind code of ref document: A2 Effective date: 20210311 |