Author
Ballard, T. M.
1
Hawkes, B. C.
1
International Potash Institute
1
Jorgensen, Jacques R.
1
Kirkby, Ernest A.
1
Knight, T. W.
1
Landis, Thomas D.
1
Life Sciences and Agriculture Experiment Station
1
Mengel, Konrad
1
Morrison, I. K. 1939-
1
Pacific Forestry Centre
1
Safford, Lawrence O.
1
Schomaker, C. E.
1
Soil Science Society of America
1
Southeastern Forest Experiment Station (Asheville, N.C.)
1
University of Maine at Orono
1
University of Maine at Orono. Life Sciences and Agriculture Experiment Station
1
Van den Driessche, R.
1
Wells, Carol G.
1
Young, Harold E.
1