Large Stock and Fertilizer Improve Growth of Douglas-fir Planted on Unstable Granitic Soil in Northern California PDF Download
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Author: R. O. Strothmann
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 8
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Book Description
Use of large stock and fertilizer resulted in significant increases in seedling height growth, but not in better survival.
Author: R. O. Strothmann
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 8
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Book Description
Use of large stock and fertilizer resulted in significant increases in seedling height growth, but not in better survival.
Author: R. O. Strothmann
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 0
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 8
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 618
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Book Description
Author:
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 176
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Book Description
Silvicultural practices in the Douglas-fir region evolved through a combination of formal research, observation, and practical experience of forest managers and silviculturists, and changing economic and social factors. This process began more than a century ago and still continues. It has had a great influence on the economic well-being of the region and on the present characteristics of the regions forests. This long history is unknown to most of the public, and much of it is unfamiliar to many natural resource specialists outside (and even within) the field of silviculture. We trace the history of how we got where we are today and the contribution of silvicultural research to the evolution of forest practices. We give special attention to the large body of information developed in the first half of the past century that is becoming increasingly unfamiliar to both operational foresters andperhaps more importantlyto those engaged in forestry research. We also discuss some current trends in silviculture and silviculture-related research.
Author: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 66
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Book Description
Author: Mary L. Duryea
Publisher: Springer Science & Business Media
ISBN: 9400961103
Category : Technology & Engineering
Languages : en
Pages : 365
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Book Description
ing damage ranged from odor. to general visual appearance. Attributes of seedling quality are categorized as either to cutting buds. to scraping bark to detect dead cambium. performance attributes (RGP. frost hardiness. stress resistance) One nursery reported using frost hardiness as an indicator of or material attributes (bud dormancy. water relations. nutrition. when to begin fall lifting. but none reported using it as an morphology). Performance attributes are assessed by placing indicator of seedling quality before shipping stock to customers. samples of seedlings into specified controlled environments and evaluating their responses. Although some effective short 23.4.3 Stress resistance cut procedures are being developed. performance tests tend Only three nurseries measure stress resistance. They use to be time consuming; however, they produce results on whole the services of Oregon State University and the test methods plant responses which are often closely correlated with field described in 23.2.3. One nursery reported that results of stress performance. Material attributes. on the other hand. reflect tests did not agree well with results of RGP tests and that RGP only individual aspects of seedling makeup and are often correlated better with seedling survival in the field. Most stress poorly correlated with performance. tests are conducted for reforestation personnel rather than for Bud dormancy status seems to be correlated. at least nurseries.
Author: Mary L. Duryea
Publisher: Springer Science & Business Media
ISBN: 9400961375
Category : Nature
Languages : en
Pages : 328
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Book Description
Proceedings of the Physiology Working Group Technical Session Society of American Foresters National Convention, Portland, Oregon, USA, October 16-20, 1983
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 574
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Book Description
