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North Central Regional Potassium Studies
Belle Lowe
Craig Eugene Beer
David Frame Cox
Earl Orel Heady
Lee G. Burchinal
Melvin G. Blase
Wilbur R. Maki
Donald R. Kaldor
George Irwin
John Francis Timmons
Joseph Kastelic
Norman Victor Strand
William Duncan Shrader
Russell Willis Bryant
Herbert T. David
James Richard Gibbons
Raymond R. Beneke
其他書名
Field studies with alfalfa. I
出版
Agricultural and Home Economics Experiment Station, Iowa State University of Science and Technology
, 1961
URL
http://books.google.com.hk/books?id=Vq9QAQAAMAAJ&hl=&source=gbs_api