PhilRice

Soil Series

Information System

0-20
20-35
35-89
Luisiana Series
Soil Fertility Low
Soil pH Acid (4.5
Organic Matter Low
Phosphorus (P) Low
Potassium (K) Low
Nutrient Retention Moderate
Base Saturation Low
Salinity Hazard Low
Physical Soil Quality
Relief Rolling to mountainous
Water Retention High
Drainage Good
Permeability Moderate
Workability/Tilth Easy
Stoniness None
Rooting Depth Very deep (>2.0m)
Flooding None
Erosion Moderate to severe
Surface Soil Type: Clay loam
Family name: Very fine, Kaolinitic, isohyperthermic, Ustic Palehumult
A very deep pale fine textured soil having clay content of higher than 60 dominated by kaolinite minerals developed from highly weathered volcanic basaltic rock materials It is a highly leached old soil with accumulation of clay in the lower horizon and low base status ult Ultisol It is found in highlands hum with pronounced wet and dry seasons ustic and a mean annual soil temperature higher than 22C isohyperthermic