Identification of Available Nutrients NPK of Oil Palm Soil (Elaeis guineensis Jacq) in the Phase of Plants Not Yet Producing Fruit

Oil palms that experience nutrient deficiencies will affect their vegetative and generative growth and even cause plant death. This study aims to determine the chemical properties of soil in oil palm plantations at the plant phase before producing fruit. This study was conducted at an oil palm plantation owned by PTPN III Kebun Aek Nabara Utara, Labuhanbatu Regency, and analyzed at the Soil Laboratory of the Faculty of Agriculture, University of North Sumatra. The method used is the observation method, sampling in the field, and analysis in the laboratory to obtain quantitative data. Observation parameters include soil pH, C-organic, Total Nitrogen, Available P, Cation Exchange Capacity, and Base Saturation. The results of the study showed that the level of soil fertility at the research location was included in the low category. The main limiting factor that causes low soil fertility is the low organic matter content of the soil and to improve the soil fertility status at the research location so that the availability of nutrients for plants is more sufficient