Direct seeding ponderosa pine on recent burns in Arizona
By: W. J. Rietveld and L. J. Heidmann.
Contributors: Heidmann, L. J.; Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.).
Series: USDA Forest Service research note RM ; 312; USDA Forest Service research note RM -- 312.
Publisher: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
Published: 1976
Place of publication: Fort Collins, Colo
Language: eng
Subjects: Forest reproduction -- Arizona.; Frost heaving.; Ponderosa pine.
Notes: Bibliography: p. 7-8.