Utoyo, B. ., Shifa Usodri, K. ., Sukmawan, Y. ., Esa Putra Arahman, R. ., Hamdani, H., & Sudirman, A. (2022). Application of KNO3 and NPK Fertilizers on Double Tone Oil Palm (Elaeis Guineensis Jacq.) Seedling Growth in Main-Nursery. Jurnal Penelitian Pertanian Terapan, 22(3), 224-231. https://doi.org/10.25181/jppt.v22i3.2600