Prospect of Irri-Boro on over 1,000 acres of land in Kamalapur union under Patuakhali Sadar upazila has become bleak as the lands cannot be irrigated as the canal running through the fields has been leased to some influential people. The lessees have built seven dams in the canal, obstructing its flow, sources said. "We went to the local union parishad chairman several times to resolve the problem but to no effect,' farmer Shahjahan Sikder told this correspondent.