Lie prone on a bench with a barbell or pair of dumbbells hanging at arms’ length. Perform a row, squeezing the shoulder blades back together and keeping them down  instead of shrugging up. Lower under control.
 
When using a barbell, a cambered bar is preferable to allow a fuller range of motion. Using dumbbells will also allow a more complete range of motion.
 
Purpose
The bench row allows heavy loading in the row without being limited by the lower back, and forces the motion to be done strictly rather than using momentum from the lower body or reaching of the chest down to help.
 
Programming
Generally sets of 6-15 are appropriate.