作者: Alan Blake Darlington
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摘要: The plant roots are embedded in a fibrous matrix material, which is oriented vertically. material fixed to support structure using grid of fasteners. may be standard corrugated plastic sheeting, or moulded sheet. If biodegradable materials used, they must protected from humidity etc. strong enough itself, and the plants, between fasteners, so long as spacing fasteners less than 1/4-metre.