Design Parameters, Criteria and Operation Guidelines of Controlled Drainage and Sub-Irrigation for Dambo Smallholder Farmers’ Water User Groups Author/Editor(s): Mwenechanya, F.Kahimba, F.C.Tarimo, A.K.P.R.Wiyo, K.A.Salim, A.B.Date of publication: 2012RUFORUM Conferences and Workshops Read more about Design Parameters, Criteria and Operation Guidelines of Controlled Drainage and Sub-Irrigation for Dambo Smallholder Farmers’ Water User Groups