Sutarman Gafur, Saeri Sagiman, Tatang Abdurrahman. Corn Growth and Yield on Suboptimal Upland Soil After Amended with Biochar and Low Levels of Fertilizer in West Kalimantan, Indonesia. J. Trop. Upland Res. [Internet]. 2020Jun.14 [cited 2025Aug.24];2(1):94-102. Available from: https://jtur.lppm.unila.ac.id/jtur/article/view/84