PhilRice

Soil Series

Information System

0-15
15-39
39-69
69-74
Guimbalaon Series
Soil Fertility Low
Soil pH Slightly acid (5.0
Organic Matter Moderate
Phosphorus (P) Low highly fixed
Potassium (K) Low highly fixed
Nutrient Retention Moderate
Base Saturation Low to moderate
Salinity Hazard None
Physical Soil Quality
Relief Rolling to hilly
Water Retention Low to moderate
Drainage Moderate to good
Permeability Moderate to rapid
Workability/Tilth Moderate to easy
Stoniness Outcrops and pebbles
Rooting Depth Shallow (0.5 m)
Flooding None
Erosion Severe
Surface Soil Type: Clay/fine sandy loam/Loam/Gravelly loam
Family name: Fine, loamy, skeletal, mixed, isohyperthermic Andic Haplustept
Soils formed from older alluvium which are country rocks and washed out materials from the upper slopes that have developed into brown or dark brown soils It has a fine loamy texture with more than 15 fine sand 18 35 clay and 35 or more rock fragments skeletal It is a young soil in its incipient development stage toward mature soil but has not yet fully developed its diagnostic horizons ept inceptisol It exhibits minimum complexity in its horizonation hapl This soil has significant amounts of amorphous minerals and Al OH complexes andic It is found in areas with pronounced wet and dry seasons ust Ustic and has a mean annual temperature higher than 22C isohyperthermic This soil is traversed by numerous deep gullies and rivers