Vacuum transfer system increases sugar maple sap yield /

Bibliographic Details

Main Author:	Walters, Russell S.
Corporate Authors:	United States. Northeastern Forest Experiment Station, Upper Darby, Pa, United States. Forest Service
Format:	Government Document Book
Language:	English
Published:	Broomall, Pa. : Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1978.
Series:	USDA Forest Service research note NE ; 264.
Subjects:	Sap. Sugar maple.