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Response to Urea and Ammonium Nitrate Fertilization in an 80-year-old Douglas-fir Stand

Richard E. MillerConstance A. Harrington

出版	Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1979
URL	http://books.google.com.hk/books?id=LtC6OYyjl8kC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN