Variation in Total and Soluble Nitrogen Concentrations in Response to Fertilization of Douglas-Fir

By Van Den Driessche R.   Webber J. E.  

Forest Science, Vol. 23, Iss. 2, 1977-06 ,pp. : 134-142

Society of American Foresters

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Three-Dimensional Canopy Structure of an Old-Growth Douglas-Fir Forest

By Song Bo   Chen Jiquan   Silbernagel Janet  

Forest Science, Vol. 50, Iss. 3, 2004-06 ,pp. : 376-386

Society of American Foresters

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Early Development of Three Douglas-Fir Stocktypes on a Droughty Skeletal Soil

By Hobbs Stephen D.   Crawford Michael S.   Yelczyn Beverly A.  

Western Journal of Applied Forestry, Vol. 4, Iss. 1, 1989-01 ,pp. : 21-24

Society of American Foresters

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Yield Comparison of Three Douglas-Fir Plantations on Former Farmland in Western Washington

By Murray Marshall D.   Harrington Constance A.  

Western Journal of Applied Forestry, Vol. 5, Iss. 4, 1990-10 ,pp. : 123-126

Society of American Foresters

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Hybridization Between Douglas-Fir and Bigcone Douglas-Fir

By Ching Kim K.  

Forest Science, Vol. 5, Iss. 3, 1959-09 ,pp. : 246-254

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