Effects of manganese and manganese-nitrogen applications on growth and nutrition of Douglas-fir seedlings
By: M. A. Radwan, John S. Shumway, and Dean S. DeBell.
Contributors: Shumway, John S.; DeBell, Dean S.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.); United States. Forest Service.
Series: Research paper PNW -- no. 265.; Research paper PNW -- 265.
Publisher: Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1979
Place of publication: [Portland, Or.]
Language: eng
Number of pages: 12
Subjects: Douglas fir.; Forest soils -- Fertilization.; Nitrogen fertilizers.
Notes: Issued Oct. 1979.

Bibliography: p. 11-12.