Cassman, Kenneth G. books & textbook
Crop Ecology: Productivity and Management in Agricultural Systems
Connor, David J. Loomis, Robert S. Cassman, Kenneth G.
Cambridge University Press /2011-08-22 Paperback / 576 Pages
isbn-10: 0521744032 / isbn-13: 9780521744034
TRADITIONAL RAINFED BARLEY PRODUCTION IN THE ANDEAN HIGH LANDS OF ECUADOR: SOIL NUTRIENT LIMITATIONS AND OTHER CONSTRAINTS
Bossio, Deborah A & Cassman, Kenneth G
Mountain Res & Devel /1991T Pamphlet
