Coniferous understory influences sugar maple (Acer saccharum Marsh.) sap production
By: by Russell S. Walters
Contributors: United States. Forest Service; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: USDA Forest Service research paper NE -- 398
Publisher: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1978
Place of publication: Broomall, Pa
Language: eng
Subjects: Sap; Sugar maple
Notes: Bibliography: p. 5