摘要 |
<p>Each support frame is made from rigid galvanised wire, formed into the shape of a flattened arc. These are spaced at regular intervals along the length of, and over, the cultivated bed. The protective covering (1) is heavy gauge plastic sheeting, this being pulled over the top of the support frames to form a wide flange on all sides. The ground pegs are rigid galvanised wire, having each end bent down at a right angle to form a U shape. These ends are pushed into the ground, through reinforced and strengthened holes in the plastic sheeting, to anchor the flange.</p> |