TY  - JOUR 
T1  - Sources and rates of potassium for sweet orange production
JO  - Scientia Agricola
A1  - Quaggio, José Antonio
A1  - Mattos Junior, Dirceu
A1  - Boaretto, Rodrigo Marcelli
SN  - 0103-9016
UL  - 10.1590/S0103-90162011000300015
VL  - 68 
Y1  - 2011
PB  - Brasil 
ER  -