This second edition of a well-established book introduces basic soil science theory, essential for the proper use and maintenance of this resource. It places greater emphasis on sustainable production and environmental protection and incorporates the new soil classification system. Pedology, soil chemistry and fertility, soil physics, and soil management are all covered. Each subject has been placed in a New Zealand context and many specific New Zealand examples are given.

List of plates Foreword Acknowledgments 1. The soil profile 2. Soil formation 3. Classification and characteristics of New Zealand soils 4. Soil pattern, soil mappings, soil maps and their interpretation 5. The physical and mechanical characteristics of soils 6. The storage of water in soil 7. Water and solute movement in soils and plants 8. Soil aeration and temperature 9. Management of soil physical conditions 10. Soil organic matter 11. Inorganic soil colloids 12. Ion exchange in soils and soil acidity 13. Nutrient availablity 14. Soil, plant and fertiliser nitrogen 15. Soil, plant and fertiliser phosphorus 16. Soil, plant and fertiliser sulphur 17. Potassium, calcium , magnesium and sodium 18. Micronutrients 19. Soil fertility and fertiliser management 20. Additional management considerations for horticultual and forestry soils 21. Soils and the quality of the environment

R. G. McLaren – Reader in Soil Science, Lincoln University, Canterbury, New Zealand; K. C. Cameron – Senior Lecturer, Department of Soil Science, Lincoln University, Canterbury, New Zealand