Mendes, J. da S. et al. 2022. Symptoms of deficiency and initial growth of maize cultivated with biochar under nutrient omission. Semina: Ciências Agrárias. 43, 5 (Jul. 2022), 2079–2092. DOI:https://doi.org/10.5433/1679-0359.2022v43n5p2079.