Variáveis microbiológicas e produtividade do arroz sob diferentes manejos do solo e água - DOI: 10.4025/actasciagron.v29i3.281

Talles Eduardo Borges dos Santos; Fernando Takayuki Nakayama; Orivaldo Arf; Ana Maria Rodrigues Cassiolato

doi:10.4025/actasciagron.v29i3.281

Microbial variables and productivity of rice under different soil and water managements - DOI: 10.4025/actasciagron.v29i3.281

Talles Eduardo Borges dos Santos UNESP, Ilha Solteira
Fernando Takayuki Nakayama UNESP, Ilha Solteira
Orivaldo Arf UNESP, Ilha Solteira
Ana Maria Rodrigues Cassiolato UNESP, Ilha Solteira

DOI: https://doi.org/10.4025/actasciagron.v29i3.281

Abstract

This experiment aimed to verify the effects of differents soil (MS) and water (WM) managements on upland rice cultivation through microbial biomass carbon (MBC) quantification, evoluted CO₂ (C-CO₂), metabolic quotient (qCO₂), micorrhization and crop yield. Cultivar IAC 202 was used. The experimental design was a randomized complete block design, with 3 SM: no-tillage (NT), heavy disk + leveling disk harrowing (HL), and chisel plowing + leveling disk harrowing (CL), plus 3 WM: no irrigation (WD0), water depth 1 (WD1), irrigation at the reproductive and maturation periods and water depth 2 (WD2), irrigation throughout the rice cycle, with four replications. The microbiological variables showed sensitivity in detecting differences between good periods and irregular rainfall, where the NT + WD1 showed best results. However, under the viewpoint of productivity and economic viability, CL + WD1 propitiated the most satisfactory results for rice culture.

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Author Biography

Ana Maria Rodrigues Cassiolato, UNESP, Ilha Solteira

Possui graduação em Ciências Biológicas pela Universidade Estadual Paulista Júlio de Mesquita Filho (1983), mestrado em Agronomia (Microbiologia Agrícola) pela Universidade de São Paulo (1988) e doutorado em Agronomia (Genética e Melhoramento de Microrganismos) pela Universidade de São Paulo (1995). Atualmente é professor assistente doutor da Universidade Estadual Paulista Júlio de Mesquita Filho. Tem experiência na área de Microbiologia, com ênfase em Microbiologia e Bioquímica do Solo, atuando principalmente nos seguintes temas: indicadores de qualidade, fungos micorrízicos arbusculares, cerrado, recuperação de áreas degradadas, espécies arbóreas e resíduo orgânicos Currículo Lattes

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Published

2007-11-14

How to Cite

Santos, T. E. B. dos, Nakayama, F. T., Arf, O., & Cassiolato, A. M. R. (2007). Microbial variables and productivity of rice under different soil and water managements - DOI: 10.4025/actasciagron.v29i3.281. Acta Scientiarum. Agronomy, 29(3), 355-360. https://doi.org/10.4025/actasciagron.v29i3.281

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Issue

Vol 29 No 3 (2007)

Section

Crop Production

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