Open Access Research Paper Views (967) Productivity of watermelon (Citrullus lanatus L. ) in biochar-amended soil Princess Joy B. Ticman Int. J. Agron. & Agric. Res. 25(5), 23-32, November 2024. Keywords: Biochar, Inorganic fertilizer, Pelletized biochar, Return on investment, Watermelon Details