Tikokino

74, 74F, 74G - Tikokino - Dominant Soil @ Map Scale 1:50000

Associated Soil/s	32, 39 may also be found within these areas (74, 74f, 74g) if a more detailed survey was carried out.
Soil Properties of Dominant Soil/s
Parent material	Tikokino age alluvium from the erosion of Castlecliffian deposits (layers of sandstone, siltstone, mudstone and greywacke stones) over red metal
Characteristics of site	Gently sloping intermediate terrace
Soil features	Silt loam or sandy loam over greywacke stones
Natural drainage Depth to water table after wet periods	Good >10 m
Potential rooting depth, texture, and limiting layer	74 - 45-60 cm silt loam/sandy loam on stones 74g - 30-45 cm sandy loam/silt loam on stones 74f – 25-30 cm silt loam on clay on stones at 45-60 cm
Available water capacity (AWC)	74 - 50-75 mm 74g – 25-50 mm 74f – 50-75 mm
Infiltration rate	Moderate
Permeability rate	74 - moderate 74g – rapid 74f – slow
Susceptibility to pugging and compaction when wet	74 - moderate 74g - low to moderate 74f – high
Susceptibility to wind erosion when dry	High
Unfavourable soil characteristics	74g - gravels on surface in places Low AWC Rapid permeability Topsoil easily eroded by wind 74f – topsoil easily compacted causing slow infiltration

Soil Management of Dominant Soil/s

Artificial drainage None needed

Cultivate when moist to avoid:
Wind erosion
Compaction

74
74f

Irrigation:-

Recommended method
Dripper spacing for continuous wetted strip

Amount and frequency 74g - sprinkler to prevent water loss
40 cm if 4 l/hr drippers used
74 – 25-35 mm infrequently
74g - 15-25 mm often to prevent water loss
74f – 15-25 mm often to prevent waterlogging

Tikokino (74,74f,74g).
Tikokino (74, 74f, 74g) (photo K. Vincent)