SOOTAHAR, Mahendar Kumar et al. Short-Term Impact of Plant and Liquid derived Fulvic Acids on the Physiological Characteristics, Plant Growth and Nutrient Uptake of Maize-Wheat Production: Effect of fulvic acid on growth and soil. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, [S. l.], v. 59, n. 1, p. 37–47, 2022. DOI: 10.53560/PPASB(59-1)694. Disponível em: http://ppaspk.org/index.php/PPAS-B/article/view/695. Acesso em: 3 dec. 2025.