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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 (document genres) plans (reports)
Location:
North and Central Idaho; Eastern Washington; Western Montana; Northeastern Oregon
Publisher:
Intermountain Forest Tree Nutrition Cooperative, University of Idaho, College of Forest, Wildlife and Range Sciences, Moscow
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", Idaho Forestry Research Collection, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/forestryresearch/items/forestryresearch879.html
Rights
Rights:
Educational use includes non-commercial use of text and images in materials for teaching and research purposes. Digital reproduction rights granted by University of Idaho Library. For other uses beyond educational use, please contact University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu.
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