SLOW AND FAST RELEASE FERTILIZER COMPOSITION AND METHODS FOR MAKING SAME

A homogeneous fertilizer granule comprises slow release low water-solubility source of phosphorus and a fast release water-soluble source of phosphorus (P). The homogeneous fertilizer granule may further contain other essential nutrients and micronutrients required by plants. A number of methods may...

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Bibliographic Details
Main Authors CLARK, Donald R, BRITTON, Ahren Thomas, FROEHLICH, Dan Michael
Format Patent
LanguageEnglish
French
German
Published 11.03.2020
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
CHEMISTRY
FERTILISERS
FERTILISERS CHARACTERISED BY THEIR FORM
FERTILISING
FISHING
FORESTRY
HUMAN NECESSITIES
HUNTING
MANUFACTURE THEREOF
METALLURGY
MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05
MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS
PHOSPHATIC FERTILISERS
PLANTING
SOWING
TRAPPING
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Summary:A homogeneous fertilizer granule comprises slow release low water-solubility source of phosphorus and a fast release water-soluble source of phosphorus (P). The homogeneous fertilizer granule may further contain other essential nutrients and micronutrients required by plants. A number of methods may be used to make such granules. One method includes introducing a struvite slurry or fines and a liquid supply of water soluble P into a granulator. Alternatively, dry raw materials can be mixed with water/steam and/or another binder prior to being fed into a granulator. In another embodiment, pre-mixed dry raw materials are mechanically compacted and crushed to yield homogeneous fertilizer particles.
Bibliography:Application Number: EP20140811297