Vol. XCIX (99) 2015, No. 1
Introduction to International Year of Soils Special Issue
Robert Mikkelsen
Soil and Food Security
Terry L. Roberts and John Ryan
Human Health Depends on Soil Nutrients
John Duxbury, Graham Lyons and Tom Bruulsema
2015 IPNI Catalog of Publications and Online Store
Modifying Soil to Improve Crop Productivity
Luis I. Prochnow and Heitor Cantarella
Strategies to Protect and Conserve Soil Resources
Ana Wingeyer and Fernando O. García
2015 IPNI Scholar Award Program for Graduate Students
2014 Crop Nutrient Deficiency Photo Contest Winners
Soil Microorganisms Contribute to Plant Nutrition and Root Health
Mark S. Coyne and Robert Mikkelsen
Soils and Plant Roots
Robert Mikkelsen
Soil Degradation in sub-Saharan Africa and Crop Production Options for Soil Rehabilitation
Shamie Zingore, James Mutegi, Beverly Agesa, Lulseged Tamene, and Job Kihara
Sustainable Intensification to Protect Soil Resources
Robert Mikkelsen
Applying 4R Nutrient Stewardship Principles in Precision Soil Management
Brian Arnall and Steve Phillips
Soil's Year in the Sun
Gavin Sulewski