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Revista Brasileira de Ciência do Solo

On-line version ISSN 1806-9657

Abstract

BARBOSA, Graziela Moraes de Cesare; TAVARES FILHO, João; BRITO, Osmar Rodrigues  and  FONSECA, Inês Cristina Batista. Residual effect of sewage sludge on off-season corn yield. Rev. Bras. Ciênc. Solo [online]. 2007, vol.31, n.3, pp.601-605. ISSN 1806-9657.  https://doi.org/10.1590/S0100-06832007000300020.

Among the possibilities of final disposal of sewage sludge, agricultural recycling has become one of the most widely used in several developed countries, and is considered the most appropriate in technical, economical and environmental terms. This study aimed at evaluating the sewage sludge residual effect on off-season corn yield on an Eutroferric Red Latossol (Oxisol). The field experiment was in a randomized block design with three replications, with treatments consisting of increasing doses of sewage sludge (0, 6, 12, 24 and 36 t ha-1, on a dry weight basis), applied in the two previous cropping seasons.. The residual effect of the application of lime-stabilized sewage sludge increased the yield of off-season corn; the grain yield under a rate of 36 t ha-1 was statistically higher than those under 6 and 12 t ha-1.

Keywords : biosolids; organic fertilizer; fertilizer.

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