When South Sudan became an independent state in July 2011, northern Sudan lost most of its oil fields to its new neighbouring country.<br /><br />In an effort to revive the country's struggling economy, the Sudanese government based in Khartoum has been selling or leasing vast swaths of fertile land to foreign investors.<br /><br />But in areas where agricultural land is the basic source of living for people, there is much anger over what farmers say is a government policy that promotes foreign land grabs, favouritism, and exploitation.<br /><br />Al Jazeera's Mohamed Vall reports from al-Shamanlya, Sudan.