Carvalho, Orozimbo Silveira, Antonio Saa, José Maria Gascó Montes, Rafael Caballero, and Francisca Guerrero López. “Temporal Variability of Chemical Properties in a Soil With Three Cultivation Systems”. Pesquisa Agropecuaria Brasileira 34, no. 12 (December 1, 1999): 2299–2309. Accessed March 26, 2026. https://apct.sede.embrapa.br/pab/article/view/5566.