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Third Five Year Study Plan for the Intermountain Forest Tree Nutrition Cooperative Item Info

Document outlining the plan for the IFTNC for the next 5 years, it includes a goal statement and an experiment with the following Preface: Previous results from IFTNC Douglas-fir and ponderosa pine experiments suggest a link between nutrition, particularly potassium nutrition, and insect and disease pests. Mortality rates in the Douglas-fir trials were significantly higher instands with poor pre-treatment foliar K status after application of 400 lbs. of N/ Ac. lnterestingly, the most common mortality causes in this K status/ treatment category were root rots and bark beetles. Results from the Montana ponderosa pine experiment showed that N only treated plots experienced higher mortality rates, producing a net loss in volume growth after 4 years. Conversely, N + K treated plots showed less mortality than control plots. The net volume growth effect associated with adding K was highly significant. Mortality on the N only plots was six times as great as control plot mortality; over 80% of it resulting from bark beetle activity N+ K plots showed less mortality than control plots with no bark beetle mortality.

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Title:
Third Five Year Study Plan for the Intermountain Forest Tree Nutrition Cooperative
Creator:
Intermountain Forest Tree Nutrition Cooperative
Date Created (ISO Standard):
1993-08-18
Description:
Document outlining the plan for the IFTNC for the next 5 years, it includes a goal statement and an experiment with the following Preface: Previous results from IFTNC Douglas-fir and ponderosa pine experiments suggest a link between nutrition, particularly potassium nutrition, and insect and disease pests. Mortality rates in the Douglas-fir trials were significantly higher instands with poor pre-treatment foliar K status after application of 400 lbs. of N/ Ac. lnterestingly, the most common mortality causes in this K status/ treatment category were root rots and bark beetles. Results from the Montana ponderosa pine experiment showed that N only treated plots experienced higher mortality rates, producing a net loss in volume growth after 4 years. Conversely, N + K treated plots showed less mortality than control plots. The net volume growth effect associated with adding K was highly significant. Mortality on the N only plots was six times as great as control plot mortality; over 80% of it resulting from bark beetle activity N+ K plots showed less mortality than control plots with no bark beetle mortality.
Subjects:
research plans (reports)
Location:
North and Central Idaho Eastern Washington Western Montana Northeastern Oregon
Source:
Intermountain Forest Tree Nutrition Cooperative. 1993.Part lll: Five Year study Plan for the IFTNC: A Forest Nutrition - Forest Health Emphasis. FWR, Univ. of Idaho, Moscow.
Source Identifier:
Third_Five_Year_Study_Plan_IFTNC_1993
Type:
Text
Format:
application/pdf

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Source
Preferred Citation:
"Third Five Year Study Plan for the Intermountain Forest Tree Nutrition Cooperative", Intermountain Forestry Cooperative, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iftnc/items/iftnc4800.html
Rights
Standardized Rights:
This document is provided by the University of Idaho Library for use by University of Idaho students, staff, and faculty. All rights to the document linked from this metadata belong to the author, rights holder, and/or provider. For more information contact The Intermountain Forestry Cooperative, https://www.uidaho.edu/cnr/ifc
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