Retraction notice to “Enhancing cation and anion exchange capacity of rice straw biochar by chemical modification for increased plant nutrient retention” [Sci. Total Environ. 886 (2023) 163681] - Saptaparnee Dey; Tapan Jyoti Purakayastha; Binoy Sarkar; Jörg Rinklebe; Sarvendra Kumar; Ranabir Chakraborty; Anindita Datta; Khajanchi Lal; Yashbir Singh Shivay (Science of The Total Environment, 2026)