sativa L.) dry matter (DM) yields and crude protein contents in Northeast Spain. The average
DM yields varied from 10.1 to 22.5 t DM ha-1, in irrigated conditions, and from 1.3 to 6.3 t DM
ha-1 in rain fed conditions. The crude protein contents of the crop ranged from 110 to 251 g
kg-1 DM under irrigation and averaged 205 g kg-1 DM in non irrigated areas. The numbers
of harvests per season was normally between 5 and 7. It is concluded that the Ebro valley is …