TY  - JOUR 
T1  - Plant densities and modulation of symbiotic nitrogen fixation in soybean
JO  - Scientia Agricola
A1  - Luca, Marcos Javier de
A1  - Hungría, Mariangela
SN  - 0103-9016
UL  - 10.1590/S0103-90162014000300002
VL  - 71 
Y1  - 2014
PB  - Brasil 
ER  -