Ammonium nitrate, urea, and biuret fertilizers increase volume growth of 57-year-old Douglas-fir trees within a gradient of nitrogen deficiency
By: Richard E. Miller, Donald L. Reukema, and John W. Hazard
Contributors: Reukema, Donald L; Hazard, John W; Pacific Northwest Research Station (Portland, Or.)
Series: Research paper PNW -- RP-490
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 1996
Place of publication: Portland, Or
Language: eng
Format: Microform
Number of pages: 12
Subjects: Douglas fir -- Fertilizers
Notes: Cover title

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Includes bibliographical references (p. 11-12)

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