Optimum Combinations of Competitive Crops at Particular Loctions

Auteur : Bernard J. Bowlen, Earl Orel Heady, Edna Douglas, Fred Homer Wiegmann, J. A. Zoellner, Jan Van Schilfgaarde, John Parry Dodds, Landy Boyd Altman, Owen Lavar Brough, Virgil Lee Hurlburt, E. H. Jebe, Geoffrey Seddon Shepherd, J. M. Scholl, K. R. Marvin, Oscar Kempthorne, Richard K. Frevert, Don Kirkham, Elliott S. Clifton, Russell Oscar Olson

Date de publication : 1956

Éditeur : Agricultural Experiment Station, Iowa State College

Nombre de pages : 15