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Heavy Fertilization Increases Diameter Growth Slightly in a 55-year-old Ponderosa Pine Stand in Central Arizona

L. J. Heidmann

出版	USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1985
URL	http://books.google.com.hk/books?id=LUfjVSPXaLMC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN