PhilRice

Soil Series

Information System

0-18
18-52
52-74
74-94
Annam Series
Soil Fertility
Soil pH Moderately acid
Organic Matter Medium
Phosphorus (P) Low
Potassium (K) Medium
Nutrient Retention Medium to high
Base Saturation Medium to high
Salinity Hazard
Physical Soil Quality
Relief Rolling to steep
Water Retention
Drainage Good
Permeability
Workability/Tilth
Stoniness Common to many
Rooting Depth Moderately deep to deep (soil depth)
Flooding None
Erosion
Surface Soil Type: Silty clay loam to clay
Family name: Fine, loamy to clayey, isohyperthermic, Typic Eutrustox
Loamy to fine textured soils with soil temperature regime of 22C isohyperthermic It is a typical typic representative of great group Eutrustox Eutr means the soil has high base saturation Ox french oxide it is an oxisol an intensely weathered soil predominated by the oxides from iron and aluminum due to repeated high precipitation and high temperature This soil is difficult to manage due to low fertility medium OM low P medium K and low pH It has an ustic ust moisture regime ie pronounced wet and dry season