Seven-year response of 35-year-old Douglas-fir to nitrogen fertilizer
By: R.E. Miller and L.V. Pienaar.
Contributors: Pienaar, Leon V. 1936-; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research paper PNW -- 165.; Research paper PNW -- 165.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service
Published: 1973
Place of publication: Portland, Or
Language: eng
Number of pages: 24
Subjects: Trees -- Growth; Forest soils -- Fertilization; Nitrogen fertilizers
Other titles: Seven year response of 35-year-old Douglas-fir to nitrogen fertilizer.
Notes: Cover title.

Bibliography: p. 19-21.