Table of Contents

Introduction, Allen V. Barker and David J. Pilbeam
Essential Elements-Macronutrients
Nitrogen, Allen V. Barker and Gretchen M. Bryson
Phosphorus, Charles A. Sanchez
Potassium, Konrad Mengel
Calcium, David J. Pilbeam and Philip S. Morley
Magnesium, Donald J. Merhaut
Sulfur, Silvia Haneklaus, Elke Bloem, Ewald Schnug, Luit J. de Kok and Ineke Stulen
Essential Elements-Micronutrients
Boron, Umesh C. Gupta
Chlorine, Joseph R. Heckman
Copper, David E. Kopsel and Dean A. Kopsell
Iron, Volker Römheld and Miroslav Nikolic
Manganese, Julia M. Humphries, James C.R. Stangoulis, and Robin D. Graham
Molybdenum, Russell L. Hamlin
Nickel, Patrick H. Brown
Zinc, J. Benton Storey
Beneficial Elements
Aluminum, Susan C. Miyasaka, N.V. Hue, and Michael A. Dunn
Cobalt, Geeta Talukder and Archana Sharmaz
Selenium, Dean A. Kopsell and David E. Kopsell
Silicon, George H. Snyder, Vladimir V. Matichenkov and Lawrence E. Datnoff
Sodium, John Gorham
Vanadium, David J Pilbeam and K Drihem
Conclusion, Allen V. Barker and David J Pilbeam