GB1199077A - Slow Release Potassium Containing Fertilisers - Google Patents

Slow Release Potassium Containing Fertilisers

Info

Publication number
GB1199077A
GB1199077A GB3548767A GB3548767A GB1199077A GB 1199077 A GB1199077 A GB 1199077A GB 3548767 A GB3548767 A GB 3548767A GB 3548767 A GB3548767 A GB 3548767A GB 1199077 A GB1199077 A GB 1199077A
Authority
GB
United Kingdom
Prior art keywords
insoluble
water
sulphate
soluble
magnesium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3548767A
Inventor
Wilhelm Jahn-Held
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wintershall AG
Original Assignee
Wintershall AG
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 Wintershall AG filed Critical Wintershall AG
Priority to GB3548767A priority Critical patent/GB1199077A/en
Publication of GB1199077A publication Critical patent/GB1199077A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates

Landscapes

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

Abstract

1,199,077. Slow-release fertilizer. WINTERSHALL A.G. 2 Aug., 1967, No. 35487/67. Heading C1B. A slow-release fertilizer composition contains potassium, 10-50% being in water-soluble form and 50-90% being in water-insoluble form, and phosphorus, the ratio of P 2 O 5 to K 2 O being 1 to 1-2. The insoluble constituents have a particle size of less than 200 microns. The soluble form of potassium may be the chloride, sulphate or nitrate; the insoluble form may be the calcium or magnesium phosphate, metaphosphate, silicate or calcium silicate. The composition may also contain magnesium in water-soluble and water-insoluble forms. The soluble form may be the sulphate, e.g. as kieserite or picromerite; the insoluble form may be magnesite, dolomite, or magnesium calcium phosphate. Other ingredients may be ureaformaldehyde, starch, alginate, fatty acid amine, or fatty alcohol sulphate or sulphinate. The composition may be granulated, the granules having a particle size of 0À1-5 mm. and a porosity of 5-30%.
GB3548767A 1967-08-02 1967-08-02 Slow Release Potassium Containing Fertilisers Expired GB1199077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3548767A GB1199077A (en) 1967-08-02 1967-08-02 Slow Release Potassium Containing Fertilisers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3548767A GB1199077A (en) 1967-08-02 1967-08-02 Slow Release Potassium Containing Fertilisers

Publications (1)

Publication Number Publication Date
GB1199077A true GB1199077A (en) 1970-07-15

Family

ID=10378288

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3548767A Expired GB1199077A (en) 1967-08-02 1967-08-02 Slow Release Potassium Containing Fertilisers

Country Status (1)

Country Link
GB (1) GB1199077A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116960A (en) * 1982-02-02 1983-10-05 Schering Ag Plant-promoting preparations with controlled-start plant-promoting agent release
WO1990011264A2 (en) * 1989-03-23 1990-10-04 Aquamot Ag Process for manufacturing pelletized materials for use in chemical reactions in industry or agriculture
CN114804963A (en) * 2022-03-26 2022-07-29 河北地质大学 Method for preparing mineral type potassium-magnesium-silicon slow release fertilizer by using nephrite tailings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116960A (en) * 1982-02-02 1983-10-05 Schering Ag Plant-promoting preparations with controlled-start plant-promoting agent release
WO1990011264A2 (en) * 1989-03-23 1990-10-04 Aquamot Ag Process for manufacturing pelletized materials for use in chemical reactions in industry or agriculture
WO1990011264A3 (en) * 1989-03-23 1990-11-15 Aquamot Ag Process for manufacturing pelletized materials for use in chemical reactions in industry or agriculture
CN114804963A (en) * 2022-03-26 2022-07-29 河北地质大学 Method for preparing mineral type potassium-magnesium-silicon slow release fertilizer by using nephrite tailings

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee