This study aims to find out and obtain the right dose of magnesium origin kieserite for the growth and yield of oil palm plants. The research was carried out at the Oil Palm Research Plantation (-3013'16.8", 104038'25.8"), Faculty of Agriculture, Sriwijaya University, Indralaya District, Ogan Ilir Regency, South Sumatra. Research was from February to June 2022. The study used the method of Rand…