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key features of the plant and colour coded recommended planting zones
Ivan Holliday and Geoffrey Watton
herbs and fruit
weed management
Spherical Crown Densitometer - Convex Model A Knives key features of the plantConvex (Model A) spherical crown densitometer which is helpful when establishing spacing standards in forest thinning and determining light requirements for regeneration. Features a mirror reflector engraved with a cross shaped grid of 24 quarter inch squares to delineate a plot overhead. Slightly offset convex so your head does not appear in grid. Walnut instrument case 75x75mm. Built in levelling bubble. Operating instructions included.
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