Materials for use in plant propagation

Details Materials for use in plant propagation Materials for use in plant propagation

1990-01-16

1993-05-04

Friedman, Carl D.

Plant husbandry

Receptacle for growing medium

Monolythic

47 64, A01G 3100

Patent

active

052077330

ABSTRACT:
A low density (5-12 Kgs/M.sup.3), rigid, unicellular (i.e. closed cell) expanded polyurethane foam is perforated through at least part of its thickness by mechanical means, resulting in a hydrophilic, heterocellular (open cell) foam, whereby to facilitate the passage of emergent plant roots and also to provide groups of enlarged voids (in contrast to the fine cell structure of the unmodified foam) so as to facilitate water absorption and retention.

REFERENCES:
patent: 3826041 (1974-07-01), King
patent: 3973355 (1976-08-01), McKenzie
patent: 4034506 (1977-07-01), Kasahara et al.
patent: 4058931 (1977-11-01), Vestergaard
patent: 5086583 (1992-01-01), Breen
BR-8 New Growth Medium, American Can Company, Horticultural Products, Dec. 1969.

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