This article reports the results of direct seeding experiments conducted by the author from 1934 to 1949. Spot-wise direct seeding was undertaken because of the poor showing of planted nursery-grown stock in the period 1922-1930. The results of direct seeding varied from near-failures to near-successes. Principal reasons for failure in the germination stage are reported to be late seeding; intervention of dry weeks during germination; loss of seed by being washed out and buried too deeply outside the spot during heavy rains; by soil being washed onto the seed spots; and the effects of animals. Principal reasons for mortality of seedlings are unfavorable summer weather, hard-packed exposed soil following slash fires, and rodents. The author believes that direct seeding has sufficient merit to encourage others to repeat the experiments.
Document Type: Journal Article
Associate Professor of Forestry, University of California, Berkeley
Publication date: May 1, 1950
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