[go: up one dir, main page]

WO1996004222A1 - Fertilisant a capacite neutralisante et effet anti-mousses - Google Patents

Fertilisant a capacite neutralisante et effet anti-mousses Download PDF

Info

Publication number
WO1996004222A1
WO1996004222A1 PCT/DK1995/000323 DK9500323W WO9604222A1 WO 1996004222 A1 WO1996004222 A1 WO 1996004222A1 DK 9500323 W DK9500323 W DK 9500323W WO 9604222 A1 WO9604222 A1 WO 9604222A1
Authority
WO
WIPO (PCT)
Prior art keywords
percent
weight
fertilizer
potassium
components
Prior art date
Application number
PCT/DK1995/000323
Other languages
English (en)
Inventor
Niels Kristian THORØ-NIELSEN
Original Assignee
Thoroe Nielsen Niels Kristian
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 Thoroe Nielsen Niels Kristian filed Critical Thoroe Nielsen Niels Kristian
Priority to AU31088/95A priority Critical patent/AU3108895A/en
Publication of WO1996004222A1 publication Critical patent/WO1996004222A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/06—Aluminium; Calcium; Magnesium; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds

Definitions

  • the present invention relates to a particulate fertilizer with neutralizing capacity and containing a balanced amount of nitrogen, potassium and liming agents and optionally other components for land cultivation uses and for the killing of moss.
  • the supply of liming agent is most often carried out in the form of a separate liming operation with agricultural lime, i.e. crushed or comminuted dolomite lime, bryozo- and coral lime, white chalk, silty limestone, marl, etc.
  • Such liming is typically carried out every four years, depending i.a. on the solubility of the liming agent supplied.
  • Liming is desirable as it renders the soil more porous and a number of nutrients become more readily obtainable for the plants.
  • a high soil pH also increases the leaching of particularly nitrate ions to water streams, inshore waters and ground water.
  • liming practice where the liming agent is typically supplied every four years there is a risk of the liming effect being too powerful immediately following the supply with ensuing leaching of e.g. phosphorus and nitrate. This recent knowledge has resulted in a significant reduction in the consumption of lime for agricultural purposes.
  • Dolomite lime is a preferred liming agent for agricultural and horticultural uses due to its high content of magnesium which is an important plant nutrient in addition to having soil neutralizing effect.
  • Urea (NH 2 CNH 2 ) is marketed as a nitrogen fertilizer containing 46% of N in the form of amide nitrogen.
  • Urea is readily so ⁇ luble and constitutes a readily available nutrient for plants, and prior to use it may be dissolved in water and sprayed onto the soil or the crop.
  • Urea may furthermore be distributed in a solid state, e.g. as pellets or granules, directly onto the soil.
  • urea is highly hygroscopic since it absorbs moisture from the environment. This renders urea fertilizers more susceptible to fluidisation and therefore they are less shelf stable than other solid fertilizers.
  • the magnesium carbamides formed are sticky and the calcium carbonate, CaC0 3 , remaining from the selective calcination sticks to the magnesium carbamide particles to form a solid protective layer.
  • the water formed in the reaction is to be eliminated to avoid the formation of Mg(OH) 2 which may drive off NH 3 from urea.
  • a non-hygroscopic inert fertilizer is obtained wherein nitrogen is protected against leaching and degassing and which may be stored and sown along with grain.
  • the fertilizer may be mixed with other fertilizers containing P, K and trace elements.
  • moss occurrence are known and are generally considered to be a combination of a low soil pH in the soil, changes in the nutrient supply by precipitation and atmospheric deposition and removal of particularly potassium from the soil's reserves in connection with the removal of cuttings from lawns.
  • usual fertilization and liming cannot entirely prevent moss growth.
  • spray or sprinkle iron or cupper sulfate which are highly poisonous to animals and humans, or to carry out mechanical raking.
  • Potassium fertilizers are typically naturally occurring salts, such as sylvite, cainite, carnallite, etc., or synthetic salts, such as potassium sulphate, K 2 SO ⁇ , or potassium chloride, KCl, a low-density powder, which is very difficult to distribute by itself. Attempts to mix it with some other fertilizer will result in it separating off and most of it will flow away as dust. If the powder is slightly moistened to prevent dust formation, it will rapidly solidify and become useless. Moreover various potassium-containing powders are semi-products which are not marketed and there ⁇ fore they are not usually sold on a retail basis.
  • the fertilizer should be stable and sprinkable. It is preferred that the fertilizer does not harden or form lumps during storage within normal shelf life.
  • the fertilizer according to the present invention which is characterized in that it consists of from 10 to 60 percent by weight of a magnesium-containing liming agent, from 10 to 60 percent by weight of an amide compound, and from 10 to 30 percent by weight of a potassium compound and optionally additional components, such as trace elements, phosphorus and sulphur compounds, and other compo ⁇ nents and/or auxiliary agents in an amount of from 0 to 50 percent by weight, wherein the amide compound, the magnesium- containing liming agent and the potassium compound are combined completely or partially.
  • the magnesium-containing liming agent is capable of bonding the amide and the potas ⁇ sium compounds in such a manner that the resulting mixture is immediately sprinkable and stable across a wide moisture interval without further processing.
  • the fertilizer is preferably produced on the basis of a mixture of particulate, magnesium-containing liming agent, such as dolomite, dolomite limestone or magnesium limestone with varying moisture contents of from about 3 to about 14 percent by weight of water, preferably from about 5 to about 10 percent by weight of water, more preferably about 7 to 8 percent by weight of water, and particulate and substantially anhydrous urea, preferably a urea which contains 46% of N, a potassium compound, preferably a potassium salt, preferably potassium-sulfate (K 2 S0 4 ) and from 0 to 50 percent by weight of additional fertilizer components.
  • a mixture of particulate, magnesium-containing liming agent such as dolomite, dolomite limestone or magnesium limestone with varying moisture contents of from about 3 to about 14 percent by weight of water, preferably from about 5 to about 10 percent by weight of water, more preferably about 7 to 8 percent by weight of water
  • particulate and substantially anhydrous urea preferably a urea which
  • the invention further relates to a fertilizer of the above- mentioned type and having a moss killing effect and soil neutralizing capacity.
  • the invention further relates to a method for the production of the fertilizer according to the invention, said method being characterized in mixing particulate components compri ⁇ sing from 10 to 60 percent by weight of magnesium-containing liming agent, from 10 to 60 percent by weight of amide compound and from 10 to 30 percent by weight of particulate potassium salt and optionally additional fertilizer compo- nents, such as trace elements, phosphorus and sulphur compounds and/or auxiliary agents in an amount of up to 50 percent by weight in the absence of water whereby bonding between the components occurs which prevents them from separating during storage, handling and sprinkling.
  • the desired product may be obtained independently of particular temperature conditions, e.g at a preferred temperature in the mixture of from 5* to 30"C.
  • the conversion rate is increased by increasing temperatures.
  • the particu ⁇ late components have a natural moisture or water content of from about 3 to about 14 percent by weight, preferably of from about 5 to about 10 percent by weight.
  • a liming agent and fertilizer in one product which covers the total nutritive needs of the plants in a balanced ratio and minimization of the leaching of nutrients from the soil; - simultaneously non-toxic moss killing is achieved; a nitrate-free cover-all fertilizer may be combined with a varying N,P,K-ratio, e.g. 18-2-10 and 23-3-7, preferably e.g. 14-4-10 which is recommended for most land cultivation uses, including gardens and parks, etc., and simultaneously having a soil neutralizing capacity of from 10 to 40%.
  • a combined liming agent and fertilizer according to the invention having a neutralizing capacity of e.g. 25% and simultaneously having a high N,P,K-content, e.g. 14-4-10, it is possible in lawn areas and in gardens and in areas which are less intensively cultivated to distribute fertilizer only once a year using e.g. 40 kg fertilizer per 500m 2 .
  • 50 kg of land cultivation lime per 500 m 2 are typically used each year and 25-50 kg NPK fertilizer per 500 2 once or twice a year, which simultaneously has an acidifying effect on the soil.
  • moss killing effect may be due to a sticking of the smaller fertilizer particles, i.e. particles of less than about 0.1 mm, to the fertilizer which subsequently dies.
  • Table 2 shows that it is possible to compose a fertilizer according to the invention with an NPK- content of 25-3-10 and simultaneously maintaining a neutrali- sing capacity of 14%. This is to be compared to known 25-3-9 NPK-fertilizers which have an acidifying effect.
  • Magnetic-containing liming agent as used herein means denotes a particulate product with a mesh size curve (par- tide size distribution) authorized for land cultivation uses, e.g. a product wherein 100 percent by weight of the particles are 4,0 mm or below, about 50 percent by weight thereof being 0,1 mm or below, and containing varying amounts of CaC0 3 , CaO, Ca(0H) 2 , MgC0 3 , MgO and Mg(0H) 2 and optional trace elements.
  • the liming agent may thus be selected from among e.g.
  • dolomite, dolomite limestone, magnesium limestone and combinations of calcium carbonate-containing minerals and products such as bleaching chalk, bryozo lime, coral lime, white chalk, Thomas slag and precipitated calcium carbonate, and magnesium-containing minerals and products, such as kieserite, carnallite, epsomite and kainite, preferably MgC0 3 - or MgO-containing minerals and products.
  • the liming agent is preferably untreated except from optional milling or grinding.
  • Amide compound means urea NH 2 -C-NH 2 and corresponding amide compounds and derivatives thereof, including urea-form (urea + formaldehyde or other aldehydes) and corresponding com ⁇ pounds which may be reacted with the magnesium-containing liming agent to obtain the fertilizer according to the invention.
  • Potassium compounds as used herein include all suitable, preferably neutral salts of potassium, such as potassium sulfate or potassium chloride, or K 2 0. Potassium sulfate is preferred since a sulphur component is obtained simultane ⁇ ously with this salt, and for garden uses a chlorine-poor fertilizer is preferred.
  • Further fertilizer components include in particular phos ⁇ phorus compounds, including raw phosphate, Thomas phosphate, super phosphates, PK-fertilizers, nitrophosphates and ammonium phosphate, in particular diammonium phosphate which is also a nitrogen fertilizer.
  • a content of up to 50 percent by weight is preferred, preferably of from 5 to 35 percent by weight, more preferably from 7.5 - 25 percent by weight of diammonium phosphate.
  • Other fertilizer components further include all natural and synthetic, inorganic and organic com ⁇ pounds exhibiting fertilizing performance, including trace elements. In particular such trace elements include the elements Mn, Fe, Mo, B, Co, Cu, Zn and salts and complex compounds thereof.
  • Auxiliary agents include i.a. fillers, such as plaster.
  • the fertilizer may contain a nitrate compound in the form of e.g. calcium nitrate or calcium ammonium nitrate, if desirable.
  • a nitrate compound in the form of e.g. calcium nitrate or calcium ammonium nitrate, if desirable.
  • nitrate compounds are un ⁇ desirable and unnecessary in the fertilizer according to the invention which may be composed as a high-percentage nitrogen fertilizer with an N-content of up to 28 percent by weight, while entirely avoiding the use of nitrate.
  • Moss killing designates withering of moss characterized by an initial yellowing of the leafage followed by decay.
  • Neutralizing capacity as used herein means the calculated percentage of calcium carbonate on the basis of a chemical standard basicity determination of a weighed sample of the liming agent.
  • “Land cultivation uses” as used herein means every activity in connection with the cultivation and maintenance of agricultural, silvicultural, horticultural and park areas, including also private gardens as well as nurseries.
  • the fertilizer according to the invention has a preferred particle size distribution of from 0 to 3 mm in a balanced ratio so as to prevent it from separating. This may readily be obtained by the method according to the invention for producing the fertilizer.
  • the fertilizer may be distributed manually, but for large areas mechanical distribution is preferred, e.g. using a centrifugal spreader.
  • the fertilizer according to the invention may be used directly on all garden, grass and park areas and for all possible land cultivation uses.
  • the fertilizer according to the invention may optionally be granulated for use in mechanical distribution.
  • dolomite 500 g of dolomite (average water content 7-8%) 350 g of urea, pelleted (as urea form, available from Landbrugets Stork ⁇ b A/S, DK-

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Inorganic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Fertilizers (AREA)

Abstract

On décrit un fertilisant, à capacité neutralisante et effet anti-mousses, qui comprend 10 à 60 % en poids d'un agent de chaulage contenant du magnésium, 10 à 60 % en poids d'un composé à base d'amide, et 10 à 30 % en poids d'un composé à base de potassium, et éventuellement d'autres éléments fertilisants et/ou agents auxiliaires représentant jusqu'à 50 % en poids. Le composé à base d'amide, l'agent de chaulage contenant du magnésium et le composé à base de potassium sont combinés de façon complète ou partielle.
PCT/DK1995/000323 1994-08-05 1995-08-04 Fertilisant a capacite neutralisante et effet anti-mousses WO1996004222A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU31088/95A AU3108895A (en) 1994-08-05 1995-08-04 Fertilizer with neutralizing capacity and moss killing effect

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK091894A DK171129B1 (da) 1994-08-05 1994-08-05 Gødningsmiddel med neutraliserende evne og moskvælende virkning
DK0918/94 1994-08-05

Publications (1)

Publication Number Publication Date
WO1996004222A1 true WO1996004222A1 (fr) 1996-02-15

Family

ID=8099010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1995/000323 WO1996004222A1 (fr) 1994-08-05 1995-08-04 Fertilisant a capacite neutralisante et effet anti-mousses

Country Status (3)

Country Link
AU (1) AU3108895A (fr)
DK (1) DK171129B1 (fr)
WO (1) WO1996004222A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3295787A1 (fr) * 2016-09-14 2018-03-21 Linde Aktiengesellschaft Procédé pour la régénération et l'entretien de surfaces enherbées

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183938A (en) * 1966-09-21 1970-03-11 Fisons Ltd Prilling
US3684476A (en) * 1969-11-03 1972-08-15 Marden Anstalt Process for production of n,mg and ca fertilizer
US3964893A (en) * 1974-09-30 1976-06-22 Chevron Research Company Lawn moss control with ferric ammonium sulfate-ammonium sulfate double salts
US5028252A (en) * 1984-04-26 1991-07-02 Lang & Co., Chemisch-Technische Produkte Kommanditgesellschaft Method of and composition for the fertilization, detoxification and deacidification of soil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1183938A (en) * 1966-09-21 1970-03-11 Fisons Ltd Prilling
US3684476A (en) * 1969-11-03 1972-08-15 Marden Anstalt Process for production of n,mg and ca fertilizer
US3964893A (en) * 1974-09-30 1976-06-22 Chevron Research Company Lawn moss control with ferric ammonium sulfate-ammonium sulfate double salts
US5028252A (en) * 1984-04-26 1991-07-02 Lang & Co., Chemisch-Technische Produkte Kommanditgesellschaft Method of and composition for the fertilization, detoxification and deacidification of soil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3295787A1 (fr) * 2016-09-14 2018-03-21 Linde Aktiengesellschaft Procédé pour la régénération et l'entretien de surfaces enherbées

Also Published As

Publication number Publication date
AU3108895A (en) 1996-03-04
DK91894A (da) 1996-02-06
DK171129B1 (da) 1996-06-24

Similar Documents

Publication Publication Date Title
US9938202B2 (en) Coating for improved granular fertilizer efficiency
EP3579957B1 (fr) Processus de granulation de polyhalite
CA2006751C (fr) Engrais azote en granules homogenes
AU2006207886B2 (en) Fertiliser
HU215278B (hu) Vizes műtrágya-szuszpenzió csepegtetéses öntözési célokra, és eljárás ezek előállítására
US10710939B2 (en) Coated inorganic materials and methods for forming the coated inorganic materials
US4321078A (en) Slow release fertilizer composition
JPH11278973A (ja) 硝化抑制粒剤、硝化抑制粒剤配合肥料、及び作物の栽培方法
Pandey et al. Breeding maize for tolerance to soil acidity
GB2401863A (en) Plant fertilizer granules containing powdered limestone
Hagstrom Fertilizer sources of sulfur and their use
EP3024804B1 (fr) Fertilisant au magnésium à haute efficacité
EP0904257B1 (fr) Engrais a base de nitrate de calcium
Achaw et al. Fertilizer Technology
WO1996004222A1 (fr) Fertilisant a capacite neutralisante et effet anti-mousses
RU2286969C2 (ru) Фосфорное лесное удобрение, способ его приготовления и способ подкормки лесных почв с его использованием
GB2607368A (en) Disaggregable granulated calcium and/or magnesium and potassium fertilizer and method of obtaining thereof
DK171130B1 (da) Indkapslet gødningsmiddel med neutraliserende evne
RU2672408C1 (ru) Гранулированное комплексное бесхлорное азотно-калийно-магниевое удобрение и способ его получения
Mortvedt et al. Crop response to fine and granular magnesium fertilizers
Terman et al. Sources of nitrogen and phosphorus, crop response to nitrogen and phosphorus in metal ammonium phosphates
Kilmer et al. Agronomic effectiveness of different fertilizers
US6379413B1 (en) Micro granular fertilizer for the prevention and treatment of iron chlorosis
EP1411036B1 (fr) Procédé d'obtention d'engrais azotés à teneur élevée en micro-éléments et engrais obtenus par ce procédé
Binford Commercial fertilizers

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AM AT AT AU BB BG BR BY CA CH CN CZ CZ DE DE DK DK EE EE ES FI FI GB GE HU IS JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SK TJ TM TT UA UG US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA