Trashigang farmer turns biogas waste into organic fertiliser

From cow dung to biogas, and now to organic fertiliser. In Demkhar village in Phongmey, Trashigang, 52-year-old Norbu Gyeltshen is finding another use for the waste from his biogas plant. The waste is now being processed, packed and sold as bio-slurry fertiliser. Norbu Gyeltshen and his wife have been using biogas for almost four years. […]