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10 - Ngatarawa
Soil Properties
| Parent material |
Water deposit (alluvium) from greywacke (the most recent in 1897) mixed with some older ashes on "red metal" (Ohakea) greywacke stones |
| Characteristic site and soil features |
Young flood plain of Ngaruroro river in the Ngatarawa area with sandy loam over greywacke stones. Now prevented from flooding by stop bank to the south of Roy's Hill |
| Associated soils not shown within map unit at map scale but separated out in more detailed maps. - Sample Location |
32, 39
C |
| Natural drainage and depth to water table after wet periods |
Good
>10m |
| Potential rooting depth, texture, and limiting layer |
10, >45cm sandy loam on stones
10g, 30-45cm sandy loam on stones |
| Available water capacity (AWC) |
10, 50-75 mm
10g, 30-50mm |
| Infiltration rate |
Moderate |
| Permeability rate |
10, moderate
10g, rapid |
| Susceptibility to pugging and compaction when wet |
10, moderate
10g, low to moderate |
| Unfavourable soil characteristics |
10, <60cm to stones
10g, gravels on surface in places
<45cm to stones - low AWC
rapid permeability |
Soil Management
| Artificial drainage |
10 none required |
Irrigation:-
Recommended method
Dripper spacing for continuous wetted strip
Amount and frequency |
10, 10g, sprinkler to prevent water loss
10, 10g, 40cm if 4 l/hr drippers used
10g, little, (15-25mm), often to prevent water loss |
Ngatarawa (10) (photo J. Watt)
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