2009
DOI: 10.1590/s0100-06832009000300022
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Produtividade e nutrição de mamona cultivada em área de reforma de canavial tratada com lodo de esgoto

Abstract: (6) RESUMO A utilização de lodo de esgoto (LE) em solos agrícolas é uma das maneiras mais viáveis de destinação desse resíduo. O objetivo deste trabalho foi avaliar o efeito da aplicação de LE na nutrição e na produtividade da mamona cultivada em área de reforma de canavial, num Argissolo Vermelho-Amarelo distrófico textura argilosa. Os tratamentos testados constaram de quatro doses de lodo de esgoto: 0, 5, 10 e 20 t ha -1 (base seca), calculadas para fornecer N equivalente a 0, 37,5, 75 e 150 kg ha -1 ; um tr… Show more

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Cited by 18 publications
(23 citation statements)
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“…This fact evidences the potential of sewage sludge to substitute chemical fertilization in the castor bean cultivation. These results corroborate those obtained by Chiaradia et al (2009), who observed that when sewage sludge is applied in an amount sufficient to provide once or twice the amount of N demanded by the crop, castor bean yield is higher than that for chemical fertilization. Also, when applied at doses providing half of the recommended N dose, plant yield corresponded to 93% of the yield with only mineral fertilization.…”
Section: Resultssupporting
confidence: 91%
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“…This fact evidences the potential of sewage sludge to substitute chemical fertilization in the castor bean cultivation. These results corroborate those obtained by Chiaradia et al (2009), who observed that when sewage sludge is applied in an amount sufficient to provide once or twice the amount of N demanded by the crop, castor bean yield is higher than that for chemical fertilization. Also, when applied at doses providing half of the recommended N dose, plant yield corresponded to 93% of the yield with only mineral fertilization.…”
Section: Resultssupporting
confidence: 91%
“…This fact depends on the soil fertility level and the complementation or not of the fertilization with potassium and phosphate fertilizers, since sewage sludge acts effectively as a N fertilizer. In this context, Chiaradia et al (2009) observed maximum agronomic efficiency for the sewage sludge dose of 10 t ha -1 , in a Red Yellow Argisol cultivated with castor bean.…”
Section: Resultsmentioning
confidence: 87%
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