Sanjaya R, Riwandi R, Hasanudin H. Enhancing Leaf Potassium and Corn Yield in Degraded Ultisols with Vermicompost Fertilizer. TERRA [Internet]. 2023 Dec. 17 [cited 2024 May 9];6(2):89-93. Available from: https://ejournal.unib.ac.id/terrajournal/article/view/31116