Tests of sandwich planting and the mechanical planting hole digger in California
By: Gilbert H. Schubert and Douglass F. Roy
Contributors: Roy, Douglass F.; Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.); California Forest and Range Experiment Station
Series: Research note / California Forest and Range Experiment Station -- no. 151; Research note (California Forest and Range Experiment Station) -- no. 151.
Publisher: California Forest and Range Experiment Station
Published: 1959
Place of publication: Berkeley, Calif
Language: eng
Number of pages: 10
Subjects: Propagation; Douglas fir
Notes: Caption title.

"April 1959."