Dr. James R. McKenna
Professor
Crop and Soil Environmental Science
235 Smyth Hall
Blacksburg VA 24061
telephone:+ 0 0 (1) 540 231-9786
fax:+ 0 0 (1) 540 231-3431
e-mail: jamckenn@vt.edu
Dr. J.R. McKenna and J. Chapman,
Virginia Tech.
All rights reserved.
Last updated: August 9, 2004