LXXXVII (87) 2003, No. 3
Fertilizer Use Efficiency: The North American Experience
D.W. Dibb, P.E. Fixen, M.D. Stauffer
Impact of Crop Residue Type on Phosphorus Release
N.Z. Lupwayi, G.W. Clayton, K.N. Harker, T.K. Turkington, W.A. Rice, A.M. Johnston
Providing Flexibility in Phosphorus and Potassium Fertilizer Recommendations
D.F. Leikam, R.E. Lamond, D.B. Mengel
Robert E. Wagner Award Winners Announced by PPI
J. Fielding Reed PPI Fellowships Awarded to Six Graduate Students
Understanding Phosphorus Investment in Crop Production
T.L. Kastens, J.P. Schmidt, K.C. Dhuyvetter
Meeting Potassium Needs for Pacific Northwest Grass Seed Production
J.M. Hart, D.A. Horneck, M.E. Mellbye, R.L. Mikkelsen
Improved Phosphorus Management Enhances Alfalfa Production
W.K. Berg, S.M. Brouder, B.C. Joern, K.D. Johnson, J.J. Volenec
UNDERSTANDING THE NEED FOR PHOSPHORUS AND POTASSIUM
Dr. B.C. Darst