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Paper Mulch for the Vegetable Garden
Charles Wesley Hauck
Frank Aldis Welton
George F. Henning
Harry Curtis Young
James Sheldon Shoemaker
Roy Magruder
Walter Wentworth Wiggin
William Henry Alexander
Ohio Agricultural Experiment Station
其他書名
Its Effect on Plant Growth and on Soil Moisture, Nitrates, and Temperature
出版
Ohio Agricultural Experiment Station
, 1929
URL
http://books.google.com.hk/books?id=_s5PAQAAMAAJ&hl=&source=gbs_api