TY  - JOUR 
T1  - The use of total luminescence spectroscopy in the investigation of the effects of different rice management practices on humic substances of a planosol
JO  - Revista Brasileira de Ciência do Solo
A1  - Olendzki, Rodrigo Nogueira
A1  - Ignácio, Andréia Christina
A1  - Mangrich, Antonio Salvio
SN  - 0100-0683
UL  - 10.1590/S0100-06832009000500008
VL  - 33 
Y1  - 2009
PB  - Brazil 
ER  -