Abstract
Summary The range of acid oxalate-soluble molybdenum levels founo in soils of the South Island is shown by distribution tables. There is much less variation among these soils than was found in the North Island soils previously discussed. The main points of differcnce between soil groups are: 1. (1) Yellow-grey earths wi th damp climate anel soils intermediate between yellow-grey and yellow-brown earths of the downs and hills have lower molybdenum levels than any other group These soils respond markedly to molybdate top-dressing.2. (2) Soils formed on greywacke, tertiary rocks, and sediments derived from these in Marlborough have slightly higher levels than members of the same soil group in Canterbury and Otago.3. (3) Soils derived from Moutere gravels and the podzols of Westland are extremely low in molybdenum.
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