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Title: Foliar mineral content of forest and nursery-grown Douglas-fir seedlings.
Author: Krueger, Kenneth W.;
Source: Res. Pap. PNW-RP-045. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 13 p
Publication Series: Research Paper (RP)
Description: High-vigor seedlings are required for consistently successful reforestation, and mineral nutrition undoubtedly plays a large role in determining seedling vigor. Though no serious mineral deficiencies were known to exist in Northwest forest nurseries, assurance of adequate seedling nutrition would eliminate this factor as a possible cause of plantation failures. Perspective was gained on Douglas-fir nutrition by determining essential element content in foliage of seedlings growing in 10 selected forest areas and 4 nurseries in Oregon and Washington. On the basis of comparative element levels, possible improvements in nursery fertilization are predicted.
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Krueger, Kenneth W. 1967. Foliar mineral content of forest and nursery-grown Douglas-fir seedlings. Res. Pap. PNW-RP-045. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 13 p
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