Particulate compositions useful as plant growing media...

Details Particulate compositions useful as plant growing media... Particulate compositions useful as plant growing media...

C - Chemistry, Metallurgy

05

G

71/53, 117/47.3

C05G 3/04 (2006.01) A01G 31/00 (2006.01) C05G 3/00 (2006.01) C09K 17/00 (2006.01) C09K 17/16 (2006.01) C09K 17/22 (2006.01)

Patent

CA 1215850

Abstract Superabsorbent gel compositions useful as plant growing media additives are prepared in particulate form by comminuting a partially-hydrated (10-80% moisture) gel mass in the presence of a finely divided flow aid, such as kaolin. The partially-hydrated granules are more easily mixed with damp compost or other growing media, and lead to improved soil properties, especially aeration, because the process gives rise to fewer fines which would otherwise tend to glue soil particles together. Preferred gels in foam form and based on polyacrylamide/acrylate are described.

408904

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