A guide for determining when to fertilize hybrid poplar plantations
By: Edward A. Hansen
Contributors: North Central Forest Experiment Station (Saint Paul, Minn.)
Series: Research paper NC -- 319
Publisher: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Published: 1994
Place of publication: St. Paul, Minn. (1992 Folwell Ave., St. Paul 55108)
Language: eng
Format: Microform
Subjects: Poplar -- Fertilizers -- Middle West
Notes: Distributed to depository libraries in microfiche

Shipping list no.: 94-0697-M

Includes bibliographical references (p. 6-7)

Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1994] 1 microfiche : negative