List of Articles Redness index Open Access Article Abstract Page Full-Text 1 - Evaluating th The effect of biochar fertilizer and foliar application of humic acid on the quantitative and qualitative characteristics of Roselle (Hibiscus sabdariffa) Seyedeh Fakhteh Sajadi Hamid Madani Nour Ali Sajedi Saeed Chavoshi Shahab Khaghani 10.30495/iper.2022.1947526.1757