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Title: Sowing and planting season for western yellow pine
Author: Wahlenberg, W. G.;
Source: Journal of Agricultural Research. 30(3): 245-252.
Publication Series: Scientific Journal (JRNL)
Description: In experiments with the western yellow pine (Pinus ponderosa) at the Savenac Nursery at Haugan, Mont., many helpful things have been learned, although it may now be seen that the first years of experimentation were not as effective as they might have been. The problem was attacked in much the same way as that of the western white pine (Pinus monticola), because at that time there was no means of knowing that the western yellow pine has no such decided preference for one season of sowing over another as is the case with the western white pine. For at least two seasons sowings were made in the fall and the next spring, with the purpose of watching developments of the following season and comparing the results of the fall and spring sowings. These comparisons were carefully made and they indicated advantages for both sowing seasons. Later, when several sowing dates in the fall were compared, it became evident that the time of owing within the fall or spring season as a larger factor than season itself, it was realized that efforts should first be directed toward the determination of the optimum time to sow within each season, and that these dates could then be used for comparisons between seasons
Keywords: sowing, planting, western yellow pine, Pinus ponderosa
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Wahlenberg, W. G. 1925. Sowing and planting season for western yellow pine. Journal of Agricultural Research.. 30(3): 245-252.
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