Agricultural Economics 1 Agricultural resources 1 Agroforestry 1 Agroforestry and Multipurpose Trees: Community, Farm and Social Forestry 1 Agropastoral systems 1 Erosion control 1 Erosion: Soil and Water Conservation 1 Extension and Advisory Work 1 Incentives 1 Innovation adoption 1 Learning 1 Natural Resource Economics, (New March 2000) 1 Policy 1 Policy and Planning 1 Resource management 1 Soil Fertility 1 Soil Management 1 Soil Water Management (Irrigation and Drainage), (Revised June 2002) 1 Soil conservation 1 Soil fertility 1 Soil management 1 Water conservation 1