ABSTRACT This study aims to determine the effect of NPKMg fertilizer and water as well as the interaction of the two to obtain the best dose and interval of administration of oil palm (Elaeis guineensis Jacq.) in the main nursery nursery. This study was conducted experimentally using a complete randomized design (RAL) factorial. The first factor is fertilizer NPKMg (P) (12:12:17:2) with level…