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Acta Scientiarum. Agronomy

versão On-line ISSN 1807-8621

Resumo

TOKURA, Alessandra Mayumi et al. Dynamics of phosphorus forms in soils with contrasting texture and mineralogy cultivated with rice. Acta Sci., Agron. (Online) [online]. 2011, vol.33, n.1, pp.171-179. ISSN 1807-8621.  https://doi.org/10.4025/actasciagron.v33i1.1435.

Two experiments were conducted with the objective of evaluating the influence of Si and P application upon organic and inorganic P forms in two soils solos: classificação da FAO e Soil Taxonomy (Orthic Quartzarenic Neosol - RQo- and Dystroferric Red Latosol - LVdf), having contrasting texture and mineralogy, before and after rice cultivation. The experimental was in a 4 x 3 factorial scheme, being four P doses and three Si doses. The phosphated fertilization altered the P labile forms, while in the case of low labile P forms the behaviour was dependent upon soil texture and mineralogy. The application of Si was shown to be promising to increase the availability of P for plants in rice.

Palavras-chave : phosphated fertilization, silicon; anions; P fractionation.

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