This publication reports on the FAO/IAEA Symposium on Nuclear Techniques in Integrated Plant Nutrient, Water and Soil Management. The seven themes selected for this international symposium were: 1. Evaluation and management of natural and manufactured nutrient sources; 2. Soil organic matter dynamics and nutrient cycling; 3. Soil and water management and conservation; 4. Plant tolerance to environmental stress; 5. Environmental and pollution studies; 6. Assessment of soil erosion and sedimentation; 7. Recent advancements in isotope analytical methodologies and related instrumentation.