Data/hora: 03/06/2024 18:26:50

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 06/02/2015
Data da última atualização: | 06/02/2015
Autoria: | VIEIRA, R. F.; MORICONI, W.; PAZIANOTTO, R. A. A.
Afiliação: | ROSANA FARIA VIEIRA, CNPMA; WALDEMORE MORICONI, CNPMA; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA.
Título: | Residual and cumulative effects of soil application of sewage sludge on corn productivity.
Ano de publicação: | 2014
Fonte/Imprenta: | Environmental Science and Pollution Research International, v. 21, n. 10, p. 6472-6481, 2014.
Idioma: | Inglês
Conteúdo: | The objective of this study was to evaluate the effect of frequent and periodic applications of sewage sludge to the soil, on corn productivity. The experiment was carried out as part of an experiment that has been underway since 1999, using two types of sludge. One came from the Barueri Sewage Treatment Station (BS, which receives both household and industrial sludge) and the other came fromthe FrancaSewage Treatment Station (FS, which receives only householdsludge). The Barueri sludge was applied from 1999 up to the agricultural year of 2003/2004. With the exception of the agricultural years of 2004/2005 and 2005/2006, the Franca sludge was applied up to 2008/2009. All the applications were made in November, with the exception of the first one which was made in April 1999. After harvesting the corn, the soilremained fallow until the next cultivation. The experiment was set up as a completely randomized block design with three replications and the following treatments: control without chemical fertilization or sludge application, mineral fertilization, and dose 1 and dose 2 of sludge (Franca and Barueri). The sludges were applied individually. Dose 1 was calculated by considering the recommended N application for corn. Dose 2 was twice dose 1. It was evident from this work that the successive application of sludge to the soil in doses sufficient to reach the productivity desired with the use of nitrogen fertilizers could cause environmental problems due to N losses to the environment and that the residual and cumulative effects should be considered when calculating the application of sludge to soil.
Palavras-Chave: | Corns; N cycling; Residual nitrogen.
Thesagro: | Adubo de Esgoto; Impacto ambiental; Lodo residual; Milho; Solo.
Thesaurus Nal: | Environmental impact; Nitrogen fertilizers; Sewage sludge.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (13710-1) - UPC - AP - DD -  -  -  - DIS