Kamaau, M.M., Mbuvi, H. and Maingi, F. 2025. Iron uptake in spinach (Spinacia oleracea) using biochar-iron complex derived from sugarcane bagasse under greenhouse conditions. Journal of Scientific Agriculture. 9, (Oct. 2025), 211–218. DOI:https://doi.org/10.25081/jsa.2025.v9.9672.