Slow release fertilizing composition, and process for producing the same
AssigneeBio-On S.P.A.
InventorsPaolo Saettone, Luca Del Bene, Tommaso Avellini, Mauro Comes Franchini
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Abstract
A slow release fertilizer composition includes particles of a nitrogen fertilizer coated with at least one layer having at least one polyhydroxyalkanoate (PHA), the at least one layer having an average thickness between 1 μm and 200 μm. The relative production process is also described. The slow release fertilizer composition provides for the use of biodegradable and biocompatible materials that allow a slow release of the fertilizer in the culture medium, according to the current regulations, without causing the accumulation of products which are harmful for the environment.
Claims15
A slow release fertilizer composition comprising particles of a nitrogen fertilizer coated with at least one layer comprising at least one polyhydroxyalkanoate (PHA), said at least one layer having an average thickness comprised between 1 μm and 200 μm, wherein the layer comprising at least one PHA is further coated by at least one sealing layer, wherein the sealing layer comprises PHA, mixed with the cellular residue deriving from the microbial fermentation with which the PHA is produced.
Dependencies are inferred from the claim text.