28 - Matapiro - Dominant Soil @ Map Scale 1:50000
| Associated Soil/s |
30, 32 may also be found within this area (28) if a more detailed survey was carried out. |
| Soil Properties of Dominant Soil/s |
|
| Parent material |
Tongariro ash on loess |
| Characteristics of site |
Rolling land on Plain margins |
| Soil features |
Shallow soil of air fall ash on sandy loam (loess) with cemented pan |
Natural drainage
Depth to perched gley |
Imperfect
Water perched at 30-60 cm on pan |
| Potential rooting depth, texture, and limiting layer |
20 cm ash on gleyed sandy loam (loess)
on cemented pan at 45-60 cm |
| Available water capacity |
25-50 mm |
| Infiltration rate |
Moderate |
| Permeability rate |
Very slow |
| Susceptibility to pugging and compaction when wet |
Moderate |
| Susceptibility to wind erosion when dry |
Very high |
| Unfavourable soil characteristics |
Imperfect drainage, water perched on pan
Very slow permeability
Susceptible to wind erosion |
Soil Management of Dominant Soil/s
| Artificial drainage |
N/A |
|
Cultivate when moist to avoid wind erosion
|
28 |
Irrigation:-
Recommended method
Dripper spacing for continuous wetted strip
Amount and frequency |
Sprinkler to prevent waterlogging
30 cm if 4 l/hr drippers used
15-25 mm often to prevent waterlogging |
Matapiro (28) (photo E. Griffiths)