unsur 138Akan tetapi, infomasi mengenai kebutuhan unsur hara dasar untuk jati unggul belum banyak diketahui. Penelitian ini bertujuan untuk menentukan konsentrasi unsur sulfur (S) ... Vol. 7Unsur 138, also known as Eka-Lawrencium, is a synthetic element with the atomic number 138. It was first predicted as part of the actinide series in the 1940s and was officially