Effect of fertilizer on cone production of sugar pine
By: by Gilbert H. Schubert
Contributors: California Forest and Range Experiment Station
Series: Research note / California Forest and Range Experiment Station -- no. 116; Research note (California Forest and Range Experiment Station) -- no. 116.
Publisher: California Forest and Range Experiment Station
Published: 1956
Place of publication: Berkeley, Calif
Language: eng
Subjects: Post-fire forest management; Seeds; Sugar pine
Notes: Caption title.

"October 15, 1956."