TY  - JOUR 
T1  - Nitrate production and accumulation in lettuce as affected by mineral Nitrogen supply and organic fertilization
JO  - Horticultura Brasileira
A1  - Pôrto, Mônica L
A1  - Alves, Jailson do C
A1  - Souza, Adailson P de
A1  - Araújo, Raunira da C
A1  - Arruda, Jandeilson A de
SN  - 0102-0536
UL  - 10.1590/S0102-05362008000200019
VL  - 26 
Y1  - 2008
PB  - Brazil 
ER  -