Estimating defoliation of hardwoods using blade-petiole relations
By: by Harry T. Valentine
Contributors: United States. Forest Service; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: USDA Forest Service research paper NE -- 405
Publisher: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1978
Place of publication: Broomall, Pa
Language: eng
Subjects: Defoliation; Foliar diagnosis
Notes: Includes reference