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The Effect of Multinutrient Fertilization on Understory Vegetation Annual Production

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This study quantified the effects of operational multinutrient fertilization on understory shrub, forb, and grass production in inland Northwest forests. Understory vegetation annual production increased at some sites while other sites showed no change or decreases following fertilizer treatments. The greatest understory response to fertilization occurred in low density, shade-intolerant, overstory-dominated stands. Understory vegetation response was lower under overstories dominated by more shade-tolerant conifers. Multinutrient fertilization produced increases in annual understory production of up to 2,400 lb/ac for combined understory growth forms over the entire growing season. West. J. Appl. For. 17(3):147–153.

Keywords: Fertilizer; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resource management; natural resources; understory vegetation

Document Type: Miscellaneous

Affiliations: 1: School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL, 36849 2: Department of Range Resources, University of Idaho, Moscow, ID, 83844

Publication date: 2002-07-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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