Water type and irrigation time effects on microbial metabolism of a soil cultivated with Bermuda-grass Tifton 85



Título del documento: Water type and irrigation time effects on microbial metabolism of a soil cultivated with Bermuda-grass Tifton 85
Revista: Brazilian archives of biology and technology
Base de datos: PERIÓDICA
Número de sistema: 000337396
ISSN: 1516-8913
Autores: 1
2
2
3
4
3
3
Instituciones: 1Empresa Brasileira de Pesquisa Agropecuaria, Monitoramento por Satelite, Campinas, Sao Paulo. Brasil
2Universidade de Sao Paulo, Nucleo de Pesquisa em Geoquimica e Geofisica da Litosfera, Piracicaba, Sao Paulo. Brasil
3Universidade de Sao Paulo, Centro de Energia Nuclear na Agricultura, Piracicaba, Sao Paulo. Brasil
4Universidade Estadual de Ponta Grossa, Campus de Uvaranas, Ponta Grossa, Parana. Brasil
Año:
Periodo: May-Jun
Volumen: 54
Número: 3
Paginación: 477-486
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés This study investigated the microbial metabolism in Bermuda-grass Tifton 85 areas after potable-water and effluent irrigation treatments. The experiment was carried out in Lins/SP with samples taken in the rainy and dry seasons (2006) after one year and three years of irrigation management, and set up on an entirely randomized block design with four treatments: C (control, without irrigation or fertilization), PW (potable water + 520 kg of N ha-1 year-1); TE3 and TE0 (treated effluent + 520 kg of N ha-1 year-1) for three years and one year, respectively. The parameters determined were: microbial biomass carbon, microbial activity, and metabolic quotient. Irrigation with wastewater after three years indicated no alteration in soil quality for C and ET3; for PW, a negative impact on soil quality (microbial biomass decrease) suggested that water-potable irrigation in Lins is not an adequate option. Microbial activity alterations observed in TE0 characterize a priming effect
Disciplinas: Agrociencias
Palabras clave: Gramíneas,
Riego y drenaje,
Suelos,
Microbiología,
Metabolismo,
Bióxido de carbono,
Pasto Bermuda,
Cynodon dactylon
Keyword: Agricultural sciences,
Gramineae,
Irrigation and drainage,
Soils,
Microbiology,
Metabolism,
Bermuda grass,
Cynodon dactylon,
Carbon dioxide
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