Otane

11 - Otane

Soil Properties

Parent material	Water and slope deposit (colluvium) of hill streams from muddy siltstone
Characteristic site and soil features	Fan extending from base of Havelock hills with silty topsoils over clay
Associated soils not shown within map unit at map scale but separated out in more detailed maps. - Sample Location	12, 32   B
Natural drainage and depth to gley and hence to water table after wet periods	Poor >30cm
Potential rooting depth, texture, and limiting layer	30-45cm silt loam on clay from mudstone
Available water capacity (AWC)	30-50mm
Infiltration rate	if not compacted  - moderate if compacted         - slow
Permeability rate	Very slow
Susceptibility to pugging and compaction when wet	Very high
Unfavourable soil characteristics	Topsoil easily compacted and difficult to manage in wet conditions perched gley on clay pan at <45cm very slow permeability

 

Soil Management

Artificial drainage: drain spacing	11 - 10-20m mole drains above the clay pan may also be used
Cultivate when moist to avoid: compaction	11
Irrigation:- Recommended method Dripper spacing for continuous wetted strip Amount and frequency	11,  sprinkler to prevent waterlogging 11 - 60cm if 4 l/hr drippers used  little,  (15-25mm), often to prevent waterlogging

 
Otane (11) (photo G. Wood)