ABSTRACT Increased frequency of fires palm plantations in area Pakning Asal, Bengkalis Regency may affect the structures and compositions of the soil as well as nutrient content in the soil.The aims of this research was to analyze the content of N, P, K available and C/N ratio. N-NO3- and P-H2PO4-were determined by using Spectrophotometer UV-VIS (Thermo Scientific Genesys 20), K-K+was determin…