Abstract
Abstract This paper summarises characteristic environments and morphologies of soils from schist parent rock which occur in a climosequence in Central Otago. Average values for pH, carbon, nitrogen, cation-exchange capacity, percentage base saturation, and phosphorus are used to illustrate sequential differences in soil chemistry. Trends in sulphur and levels of rhizobia and nitrifying bacteria are discussed. Dryland pastoral management techniques for soils of the sequence are reviewed. By correcting successive factors limiting pasture production it has been possible in some places to increase stock-carrying capacity 10-fold or more. The scientific approach to increasing primary production is illustrated by this soil sequence study, which can be casilv comprehended and applied.
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