Hastings

14-15 - Hastings

Soil Properties

Parent material	Water deposit (alluvium) from greywacke and/or sandstone
Characteristic site and soil features	Upper part of flood plain between levee (soils 5) and Lower flood plain between 13 in upper flood plain and 19 in back swamp; >100cm greywacke alluvium (silt loams to clay loms) over Taupo pumice alluvium.
Associated soils not shown within map unit at map scale but separated out in more detailed maps. - Sample Location	9, 13, 16, 19   G, I, J
Natural drainage and depth to gley and hence to water table after wet periods	Imperfect 30-60cm
Potential rooting depth, texture, and limiting layer	14    >60cm silt loam on sand 15    >30cm clay loam on silt loam
Available water capacity	14    100mm 15    75mm
Infiltration rate	14     If not compacted - moderate           if compacted - slow 15      if not compacted - slow            if compacted - very slow
Permeability rate	14      moderate if >100cm of silt loam             rapid if sand at 60cm 15      moderate to slow
Susceptibility of topsoil to pugging and compaction	14,     high 15,     very high
Unfavourable soil characteristics	14      silty topsoil difficult to manage in wet  conditions 15       heavy topsoil - easily compacted -             good tilth only achieved in right moisture             conditions            slow infiltration

 

Soil Management

Artificial drainage: drain spacing	14,   40m 15,   20-40
Cultivate when moist to avoid: compaction	14, 15
Irrigation:- Recommended method application rate Dripper spacing for continuous wetted strip Amount and frequency	15     sprinkler to prevent waterlogging 15     slow <4mm/hr             if 4 l/hr drippers used 14      60cm 15      70cm 15      little (15-25mm), often to prevent waterlogging

 
Hastings soils (14,15) (photo J. Watt)