Human Wastes and Refuse Soil Fertility 2 Soil fertility 2 Agricultural development 1 Agricultural soils 1 Agriculture 1 Biodiversity 1 Biomass 1 Case studies 1 Compost 1 Composting 1 Composts 1 Cycling 1 Erosion 1 Erosion: Soil and Water Conservation 1 Farmers' income 1 Fertilizers and other Amendments 1 Human Health and the Environment 1 Income and Poverty 1 Industrial Wastes and Effluents 1 Industrial wastes 1 Irrigation 1 Land use planning 1 Microbial flora 1 Microorganisms 1 Nitrogen 1 Nontarget effects 1 Organic amendments 1 Organic wastes 1 Pesticide and Drug Residues and Ecotoxicology, (New March 2000) 1