BSWM Logo Transparency Seal Logo FOI Logo

Soils of the Country

Upland Soils of the Philippines

Soil Monolith of the Upland Soils of the Philippines exhibited at the BSWM Soil Museum

  • Adtuyon Series
    Adtuyon Series
    Location: Barangay Dalwangan, Malaybalay, BUkidnon
    Classification: Ultisols (Typic Kanhapludults)
    Parent Materials: Andesitic and basaltic rocks
    General Description: These soils found on plateau with undulating to rolling landscapes, are reddish brown to yellowish red clay loam and well-drained.
    Major Land Use: Corn is the major land use. The soils are also grown to pineapple and sugarcane.
    Soil Management Options: These are acid upland soils. Liming is highly recommended.
  • Awayan Series
    Location: Bulusukan, San Ildefonso, Bulacan
    Classification: Vertisols (Udorthentic Pellustersts)
    Parent Materials: Collo-alluvium
    General Description: The soils are dark brown, clayey, well-drained, and of moderate fertility. During the dry season, the soils crack.
    Major Land Use: The sampled area was abandoned rice field, now covered by cogon and grass.
    Soil Management Options: The soils are dominated by shrinking-swelling clays. Rice can be grown successfully in the area. The soils show slight erosion features. Aside from fertility management, there is a need to apply soil conservation measures.
    Awayan Series
  • Kabatohan Series
    Kabatohan Series
    Location: Hayangganon, Claver, Surigao del Norte
    Classification: Oxisols (Rhodic Hapludox)
    Parent Materials: Volcanic rocks (serpentine)
    General Description: These are dark red soils (high in iron) and primarily acidic uplands. Their natural vegetation is limited to acid-soil loving plants. The soils are clayey, granular structure, well-drained and shows moderate erosion features.
    Major Land Use: Maubuyoc, lugas and other trees are dominant.
    Soil Management Options: The soils have special and unique use and management requirements due to very low reserve and extremely low native fertility. Nutrient recycling is important. Only almost 10% of the area should be cultivated.
  • Mayon Series
    Location: Barangay Carolina, Naga City, Camarines Sur
    Classification: Andisols (Hydric Hapludands)
    Parent Materials: Basaltic and andesitic rocks, lava, ashes, tuff and breccia
    General Description: These are residual soils that developed from the weathering of materials ejected by Mayon Volcano. The areas have successful agriculture because of high natural fertility of soils.
    Major Land Use: Coconut, corn, peanut
    Soil Management Options: Phosphate fertilization problems are associated with volcanic ask soils due to strong phosphate fixation. Age-old fertilization techniques can still do some tricks.
    Mayon Series
  • Paradise Series
    Paradise Series
    Location: Bulusukan, San Ildefonso, Bulacan
    Classification: Inceptisols (Typic Ustropepts)
    Parent Materials: Conglomerate derived from sedimentary materials
    General Description: This soils are primarily in rolling sedimentary hills. The drainage is good, low to medium natural fertility.
    Major Land Use: These soils are primarily under pasture grass. Some cultivated areas are grown to diversified crops.
    Soil Management Options: These are many stones in the subsurface and cultivation is rather difficult. Aside from pasture, permanent crops would be best for this soil.
  • Sampaloc Series
    Location: Cuyambay, Sampaloc, Tanay
    Classification: Ultisols (Typic Kandiudults)
    Parent Materials: Volcanic materials mainly pyroclastics, weathered tuff, basalts and andesites
    General Description: These occur in moderately dissected upper basaltic plateau. The soils are clayey, deep, and well-drained. Sampaloc series are problem series - acidic, highly leached, phosphorus deficient, normally low in organic matter.
    Major Land Use: The soils are vegetated by cogon, shrubs, grasses and patches of fruit trees like citrus.
    Soil Management Options: The soils are highly erodible and need proper soil conservation measures. Liming and organic matter will improve productivity.
    Sampaloc Series