Substrate for soil-free culture having a controlled water conten

Details Substrate for soil-free culture having a controlled water conten Substrate for soil-free culture having a controlled water conten

1988-10-03

1991-04-23

Scherbel, David A.

Plant husbandry

Water culture, apparatus or method

Porous support

47 87, 47 59, A01G 3100

Patent

active

050090305

ABSTRACT:
Substrates for soil-free culturing are formed from a felt of mineral fibres having a hydroretentivity gradient such that the hydroretentivity decreases in the direction of gravity. The hydroretentivity gradient may be brought about by a gradient in the fineness of the fibres such that the average diameter of the fibres increases in the direction of gravity or the density of the fibres.

REFERENCES:
patent: 4777763 (1988-10-01), Shannon
patent: 4794728 (1989-01-01), Tsukada

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