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Ciencia del suelo
versão On-line ISSN 1850-2067
Resumo
DE SOUSA NETA, Raquel et al. CHEMICAL CHARACTERIZATION AND SPECIATION OF PERCOLATED WATER FROM RED OXISOL WITH APPLICATION OF PHOSPHOGYPSUM AND GYPSITE. Cienc. suelo [online]. 2022, vol.40, n.2, pp.129-136. Epub 21-Abr-2023. ISSN 1850-2067.
The objective was to chemically characterize and determine the ionic species of nutrients in percolated water from Oxisol, with application of Phosphogypsum and Gypsite. The experiment was carried out in a greenhouse, applying Phosphogypsum and Gypsum at doses from 0.0 to 4.0 t ha-1. Fifty-five days after application, a 60 mm rainfall simulation was simulated and the pH, conductivity, and content of calcium, magnesium, potassium, nitrogen, phosphorus, sulfur, sodium, and ionic speciation in the percolated water were analyzed. The definition of the source and adequate dose of gypsum for each soil favors less loss of nutrients in the percolated water. This implies that production costs related to plant nutrition do not increase.
Palavras-chave : leaching; nutrientes; gypsum.