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Planting Depth and Seedbed Mulch Affect Germination of Slash Pine Seeds
S. J. Rowan
Southeastern Forest Experiment Station (Asheville, N.C.)
出版
Department of Agriculture, Forest Service, Southeastern Forest Experiment Station
, 1980
URL
http://books.google.com.hk/books?id=ItZY0AEACAAJ&hl=&source=gbs_api