Fertilizing Douglas-fir forests
Richard E. Miller, Roger D. Fight, Pacific Northwest Forest and Range Experiment Station (Portland, Or.), United States. Forest Service
Pacific Northwest Forest and Range Expriment Station, U.S. Dept. of Agriculture, Forest Service, 1979 - Douglas fir - 29 pages
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BIOLOGICAL BASES AND EFFECTS OF NITROGEN
HOW ENVIRONMENTALLY SAFE?
REVENUE REQUIRED TO BREAK EVEN
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$60 per acre allowable cut effect ammonium nitrate assumed board feet board foot break-even price break-even volume cash flow Corvallis cost of $60 cost of fertilizing cubic foot cumulative cost Duane G effective rate energy environmental eutrophication extra volume extra wood factor feet per acre fertiliza forest fertilization Forest Nutrition Research gained from fertilization harvest helicopter illus INCREASED YIELD CUBIC inflation initial cost Item ization land managers landowners ment needed to break nitrate nitrogen fertilizer nitrogen per acre nutrient Nutrition Research Project operational fertilization Oreg Pacific Northwest percent Portland pounds of nitrogen price of wood Pulpwood Quilcene Range Exp rate of interest real price Regional Forest Nutrition Resour response revenue roundwood silvicultural soil stands of Douglas-fir streams Tech tilization tion total cost treatment cost Univ urea fertilizer USDA volume gain Wash Washington and Oregon water quality western Washington Woodfin YIELD CUBIC FEET