Rahhutami, R., & Sudirman Yahya, S. (2015). Optimization and Effect of N , P, and K Single Fertilizer Package Rate on Two Years Old Immature Oil Palm (<i>Elaeis guineensis</i> Jacq.). Asian Journal of Applied Sciences, 3(3). Retrieved from https://ajouronline.com/index.php/AJAS/article/view/2670