SILICON DYNAMICS IN A UTISSOL OF SOUTHERN BRAZIL UNDER DIFFERENT ELEMENT SOURCES
DOI:
https://doi.org/10.32404/rean.v12i4.9388Keywords:
Agriculture, Beneficial element, Fertilizers, Weathered soilAbstract
Silicon (Si) is typically found in low concentrations in weathered soils, and its application can benefit crop production. This study aimed to assess the dynamics of silicon in weathered soils of southern Brazil following the application of different silicon sources. The experiment followed a completely randomized design in a 4 × 5 factorial scheme, with four silicon sources (silicon oxide, potassium silicate, calcium–magnesium silicate, and Yoorin), five evaluation periods (1, 2, 3, 4, and 5 months after application), and five replicates. Silicon content was analyzed at three soil depths: 0-5, 5-10, and 10-15 cm. Data were subjected to analysis of variance and multivariate analysis. Among the sources evaluated, potassium silicate resulted in higher silicon accumulation in the surface layer, while calcium-magnesium silicate and Yoorin led to greater silicon levels in the deeper layers, indicating differences in solubility and mobility of the sources over time.
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