TY  - JOUR 
T1  - Seeder-fertilizer machine: energetic demand as a function of vegetal covering handling and manure deposition shank depth in no-tillage system
JO  - Engenharia Agrícola
A1  - Grotta, Danilo C. C.
A1  - Furlani, Carlos E. A.
A1  - Silva, Rouverson P. da
A1  - Lopes, Afonso
A1  - Reis, Gustavo N. dos
SN  - 0100-6916
UL  - 10.1590/S0100-69162009000200007
VL  - 29 
Y1  - 2009
PB  - Brasil 
ER  -