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Crown release accelerates diameter growth and crown development of yellow birch saplings
Gayne G. Erdmann
Richard M. Godman
Robert R. Oberg
出版
U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station
, 1975
URL
http://books.google.com.hk/books?id=RcY8opU0utgC&hl=&source=gbs_api
EBook
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