PhilRice

Soil Series

Information System

0-6
6-36
36-69
69-90
90 below
San Manuel Series
Soil Fertility Moderate to high
Soil pH Slightly acid (5.5-7.2)
Organic Matter Low
Phosphorus (P) High
Potassium (K) Moderate
Nutrient Retention High
Base Saturation High
Salinity Hazard None to low
Physical Soil Quality
Relief Level to slightly undulating
Water Retention Moderate
Drainage Moderate
Permeability Moderate
Workability/Tilth Easy
Stoniness None
Rooting Depth Deep (>1m)
Flooding Infrequent
Erosion None
Surface Soil Type: Clay loam/Loam/Sand/Silt loam/Sandy clay loam/Sandy loam/
Family name: Fine loamy, mixed, isohyperthermic, Fluventic Haplustepts
Fine loamy textured 18 35 clay and 15 sand soil with no particular mineral of any kind dominates in the soil mixed Has isohyperthermic 22C temperature regime It is a representative of the great group Haplustepts which occurs on river floodplains and subject to seasonal river flooding Fluventic The soil has a minimum complexity of horizonation hapl with a moisture regime characteristically having pronounced wet and dry seaons ust It is an inseptisol epts Latin inceptum or beginning indicating that this soil is just beginning to develop and show soil horizons