Multipurpose trees Agroforestry 3 Agriculture 2 Shrubs 2 Afforestation 1 Agricultural soils 1 Agroforestry and Multipurpose Trees: Community, Farm and Social Forestry 1 Agroforestry systems 1 Biomass 1 Crops 1 Decomposition 1 Economic analysis 1 Erosion 1 Erosion: Soil and Water Conservation 1 Farm forestry 1 Forest soils 1 Forestery 1 Forests and Forest Trees (Biology and Ecology) 1 Grasslands and Rangelands 1 Leaching 1 Mycorrhizal fungi 1 Mycorrhizas 1 Natural Resource Economics, (New March 2000) 1 Nitrogen fixation 1 Nitrogen fixing 1 Nursery management 1 Nursery practices 1 Nutrient availability 1 Nutrient uptake 1 Plant Nutrition 1