Response of Penstemon fruticosus to fertilization
By: by G. O. Klock
Contributors: United States. Pacific Northwest Forest and Range Experiment Station, Portland, Oreg.
Series: USDA Forest Service research note PNW ; 271
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1976
Place of publication: Portland, Oreg
Language: eng
Subjects: Fertilizers -- United States.; Vegetation and climate -- United States.
Notes: Cover title