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Effect of treated sewage application via fertirrigation on soil and on Brachiaria crop

Grant number: 13/00362-0
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): May 01, 2013
Effective date (End): January 31, 2015
Field of knowledge:Agronomical Sciences - Agricultural Engineering - Soil and Water Engineering
Principal Investigator:Rogerio Teixeira de Faria
Grantee:Gilmar Oliveira Santos
Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil


The high consumption of water in irrigated agriculture and lack of alternative water sources make the reuse of sewage water a highly promising option in this activity. This research has as objective to evaluate the effect of treated sewage effluent (TSE) application, via fertirrigation, on soil and on Brachiaria crop, by quantifying of: a) response of dry matter yield and forage quality of Brachiaria to the application of TSE, b) export of macro and micronutrients from the soil by harvesting forage, and d) changes in physical and chemical properties of soil. Brachiaria brizantha cv. Marandu will be cultivated under irrigation with different application rates obtained from the TSE Treatment Plant Sewer of Jaboticabal, SP. The experiment will be conducted in the experimental area of the Rural Engineering Department at FCAV-UNESP. Five treatments will be established, corresponding to different application rates of TSE, with four replications. The evaluations will consist of monitoring of chemical and physical characteristics of the soil profile, accumulation of crop mass, leaf area index, nutrients in plant tissue and nutritional quality of pasture harvested during the experimental period. With these results will be adjusted response functions of forage yield to applications of TSE, adjusted curves and nutrient concentrations in Brachiaria leaf and soil as a function of the applied amounts of TSE.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SANTOS, GILMAR OLIVEIRA; DE FARIA, ROGERIO TEIXEIRA; RODRIGUES, GILBERTO APARECIDO; DANTAS, GEFFSON DE FIGUEREDO; DALRI, ALEXANDRE BARCELLOS; PALARETTI, LUIZ FABIANO. Forage yield and quality of marandugrass fertigated with treated sewage wastewater and mineral fertilizer. Acta Scientiarum. Agronomy, v. 39, n. 4, p. 515-523, . (13/00362-0)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
SANTOS, Gilmar Oliveira. Aplicação de efluente de tratamento de esgoto, via aspersão, no solo e em Brachiaria. 2015. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.

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