Search Results - "Research paper (United States Department of Agriculture) ;"

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A guide for determining when to fertilize hybrid poplar plantations / Edward A. Hansen.

by Hansen, Edward A.
St. Paul, Minn. : North Central Forest Experiment Station, Forest Service, United States Department of Agriculture, 1994.

Series: Research paper (United States Department of Agriculture) ; NC-319.

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Regeneration outlook on BLM lands in the Siskiyou Mountains.

[Portland, Oregon] 1986.

Series: Research paper (United States Department of Agriculture) ; PNW-349

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Genetics of white spruce / [Hans Nienstaedt and Abraham Teich]

by Nienstaedt, Hans
[Washington, D.C.] : U.S. Dept. of Agriculture, 1972.

Series: Research paper (United States Department of Agriculture) ; WO-15

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Economic impacts of an intensified timber management program by William McKillop.

by McKillop, William, 1933-
[Washington, D.C.] : U.S. Dept. of Agriculture, 1974.

Series: Research paper (United States Department of Agriculture - Forest Service) ; WO-23?UNAUTHORIZED