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Tests of Fertilizers on Wheat
A. L. Holladay
David Oliver Nourse
E. P. Niles
Ellison Adger Smyth
Robert James Davidson
Virginia Agricultural Experiment Station
Walker Bowman
William Bradford Alwood
出版
Virginia Agricultural and Mechanical College, Agricultural Experiment Station
, 1889
URL
http://books.google.com.hk/books?id=MvZFAQAAMAAJ&hl=&source=gbs_api