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32 - Poporangi
Soil Properties
| Parent material |
Water deposit (alluvium) from volcanic ash and greywacke, on alluvium from loess and greywacke and/or sandstone |
| Characteristic site and soil features |
Watercourses and depressions on old floodplain and high terrace; shallow ashy sandy loam over loess pan on stones |
| Associated soils not shown within map unit at map scale but separated out in more detailed maps. - Sample Location |
10, 11, 29, 30
A, B |
| Natural drainage and depth to perched gley |
Poor
<30cm |
| Potential rooting depth, texture, and limiting layer |
30-45cm sandy loam (ashy) on gleyed ashy sandy loam (loess)
on cemented pan over stones at >60cm |
| Available water capacity |
30-50mm |
| Infiltration rate |
Moderate
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| Permeability rate |
Very slow |
| Susceptibility to wind erosion when dry |
Very high where more ashy |
| Unfavourable soil characteristics |
Topsoil susceptible to wind erosion
perched gley at 20-30cm on very slowly
permeable cemented pan at 30-45cm |
Soil Management
| Artificial drainage: drain spacing |
32 Mole drains above pan |
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Cultivate when moist to avoid:
wind erosion
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32 |
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Irrigation:-
recommended method
Dripper spacing for continuous wetted Strip
Amount and frequency
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32 sprinkler to prevent waterlogging
32 40cm if 4 l/hr drippers used
little (15-25mm), often to prevent waterlogging |
Poporangi ashy sandy loam (32) (photo J. Watt)
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