Ultisol soil is one of the soil types that are widespread in Indonesia, especially West Kalimantan, and has the potential to be used as corn (Zea mays L.) cultivation land. Based on its characteristics, Ultisol is less supportive of plant growth because it has an acidic pH (
Research and study in soil science and other fields related, include : Soil physics and conservation Soil chemistry and fertility, Soil biology and biotechnology Clay mineralogy Plant nutrient Pedogenesis Geology and Mineralogy Soil survey and classification Soil reclamation and remediation Soil and ...