The dark-brown Granular soils at Pukekohe have been used for market gardening for many years. They are derived from weathered volcanic rocks. Their very strong structure allows them to be repeatedly cultivated without much physical deterioration.
Using this item
Reference: Les Molloy, Soils in the New Zealand landscape: the living mantle. Lincoln: New Zealand Society of Soil Science, 1988, plate 14.1
by Quentin Christie
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