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Poster Paper: Foliar Potassium Status Explains Douglas-fir Response to Nitrogen Fertilization in the Inland Norwest, USA
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TitlePoster Paper: Foliar Potassium Status Explains Douglas-fir Response to Nitrogen Fertilization in the Inland Norwest, USA
CreatorP. Mika and J. A. Moore
PublisherIntermountain Forest Tree nutrition Cooperative, University of Idaho, College of Forest, Wildlife and Range Sciences, Moscow
ContributorsIFTNC
ProjectIntermountain Forest Fertilization
Project MaterialDocuments
Document TypeStudy Publication
Date1991
RegionIntermountain West, USA
Coverage (state--county)North and Central Idaho; Eastern Washington; Western Montana; Northeastern Oregon
DescriptionDespite apparently inadequate N levels throughout the Inland Northwest of the United States, trees on some sites showed no increased growth 8 yr after N fertilization. Nor did higher N application rates consistently produce higher response. These facts indicated that other factors are limiting tree growth at these sites. Results suggest that K status is one important factor, influencing N fertilization response in the following general ways: (I) for stands with low pretreatment foliar K levels, the amount and duration of growth response are reduced, and higher N fertilizer rates produce less response; and (2) for all stands, growth response declines when foliar K decreases after N fertilization.
Keywords (Theme)Forest Fertilization, Conifer, Pesudotsuga menziesii, Douglas-fir, Forest Nutrition
Keywords (Place)North and Central Idaho
Eastern Washington
Western Montana
Northeastern Oregon
Keywords (Tree)Conifer
Douglas-fr
Subject (LCSH)Forest Nutrition
Forest Fertilization
Forest soils Inland Empire (Pacific Northwest)
Douglas-fir Growth Response - Inland Empire (Pacific Northwest)
Nutrient cycles Inland Empire (Pacific Northwest)
Forest ecology -- Inland Empire (Pacific Northwest)
SourceP. Mika and J.A. Moore. Poster Paper: Foliar Potassium Status Explains Douglas-fir Response to Nitrogen Fertilization in the Inland Norwest, USA
Identifier1991_Mika et al Folar K Status xplains DF_N response.pdf
Digital CollectionIntermountain Forest Tree Nutrition Cooperative (IFTNC) Collection
Holding InsititutionUniversity of Idaho
LanguageEng
Date Digital2011
TypeText
Formatapplication/pdf
Format OriginalPoster Paper: Foliar Potassium Status Explains Douglas-fir Response to Nitrogen Fertilization in the Inland Norwest, USA, 15pp.
RightsDigital image copyright 2010, the University of Idaho. All rights reserved. For more information contact The Intermountain Forest Tree Nutrition Cooperative, http://www.cnr.uidaho.edu/IFTNC/personnel.htm
Digital SpecificationsOrginal paper copy scanned and combined into a pdf by IFTNC.
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