Al Viandari N, Harsanti ES, Supraptomo E, Wihardjaka A. Utilization of cattle manure and potassium fertilizer on soil potassium availability and yield of cowpea (Vigna unguiculata L. Walp) in rainfed rice. Sains Tanah J. Soil Sci. Agroclimatology [Internet]. 2024 Nov. 20 [cited 2026 Oct. 21];21(2):156-64. Available from: https://jurnal.uns.ac.id/tanah/article/view/85535