Download or read book Effect of Auger Planting on Survival and Growth of Douglas fir on Droughty Sites written by Stephen D. Hobbs and published by . This book was released on 1982 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-year-old Douglas-fir bareroot seedlings were hoe- and auger-planted on droughty south and southwest aspects in southwest Oregon. After 2 years, no differences in height, diameter, or seedling biomass could be detected. Auger-planted seedlings survived significantly better on the southwest aspect.
Download or read book Effects of Auger Planting on Survival and Growth of Douglas fir on Droughty Sites written by S. D. Hobbs and published by . This book was released on 1982 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Note written by Oregon State University. Forest Research Laboratory and published by . This book was released on 1972 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Planting Morphologically Improved Seedlings with Shovels written by John Irvin Blake and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dixie National Forest N F Tippets Valley Timber Harvest written by and published by . This book was released on 1992 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Douglas fir Survival and Growth in Response to Spring Planting Date and Depth written by R. O. Strothmann and published by . This book was released on 1971 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Can Auger Planting Improve Survival of Douglas fir Seedlings written by Richard E. Miller and published by . This book was released on 1969 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book School of Forestry Series written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reforestation Practices in Southwestern Oregon and Northern California written by Stephen D. Hobbs and published by . This book was released on 1992 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forestry Bibliography 1981 84 Indexes written by and published by . This book was released on 1985 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Winter Plant Moisture Stress on Survival and Growth of 2 0 Douglas fir Seedlings written by Thomas Gary Daniels and published by . This book was released on 1978 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of winter plant moisture stress (P145) on bare-root 2+0 Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings during nursery lifting and processing were studied. Seedlings were undercut at Ca. 4, 12, and 20 atm PMS during mid-February. Half of the seedlings undercut at 12 and 20 atm were not moistened after lifting (dry treated), the remaining seedlings received water sprayed directly on shoots and roots after lifting (wet treated). All seedlings were processed for field planting within six hours of lifting, and were cold stored for 55 days. Seedlings were planted in contrasting growth environments at two sites near Corvallis, Oregon, in early spring, 1977. Survival and growth were monitored during the first season after seedlings were planted under heavy and light irrigation, and with and without vegetative competition. The effects of winter PMS were highly associated with severity of the growing site. When moisture was not limiting, as under heavy and light irrigation schedules, treatment differences were small. Under non-irrigated field conditions treatment effects were significant. Wet treated seedlings produced significantly more height growth (9.0 cm vs 8.0 cm), and new foliage growth (5.70 gin vs 4.77 gin) than dry treated seedlings when grown free of vegetative competition. Survival without competition was excellent for all treatments ranging from 9% to 98%. On a site dominated by grass competition wet treated seedlings had higher survival (43% vs 23%), more height growth prior to mortality (7.6 cm vs 6.6 cm), and more new foliage growth (3.59 gin vs 3.07 gin). Seedlings which had early dates of bud burst survived better than those with late dates. Wet treated seedlings maintained better than average survival for later periods of bud burst than dry treated seedlings. The level of PMS at the time of undercutting had no effect on survival or growth when seedlings were moistened after lifting. However, dry treated seedlings undercut at 12 atm had better growth than those undercut at 20 atm when planted with competition. PHS of lifted seedlings increases to a level governed by atmospheric demands unless shoots and roots are protected from drying. Increased survival and growth can be expected over a wide range of site conditions by maintaining PMS at 5 atm or lower during nursery processing. Reduced survival and growth of dry treated seedlings are most likely the results of poor root vigor caused by desiccation of tissues after exposure to high levels of PMS. Modification of nursery procedures to reduce the risks of exposure are discussed. The severe effect of grass competition on first year survival and growth of Douglas-fir seedlings is re-emphasized. Survival with competition was 36% compared to 96% without competition. Seedlings which survived the effects of competition were significantly smaller in diameter, weighed less, and produced less height growth and new foliage than seedlings grown free of competition. A model relating site severity to the expression of treatment differences is presented. The implications of measuring treatment effects on surviving seedlings are discussed.
Download or read book Monthly Checklist of State Publications written by Library of Congress. Exchange and Gift Division and published by . This book was released on 1984 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: June and Dec. issues contain listings of periodicals.
Download or read book Agrindex written by and published by . This book was released on 1985 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forestry Bibliography 1981 84 Bibliographic references written by and published by . This book was released on 1985 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Poplars and Willows written by Jud G. Isebrands and published by CABI. This book was released on 2014-02-12 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poplars and willows form an important component of forestry and agricultural systems, providing a wide range of wood and non-wood products. This book synthesizes research on poplars and willows, providing a practical worldwide overview and guide to their basic characteristics, cultivation and use, issues, problems and trends. Prominence is given to environmental benefits and the importance of poplar and willow cultivation in meeting the needs of people and communities, sustainable livelihoods, land use and development.
Download or read book Tree Root Systems and Their Mycorrhizas written by D. Atkinson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a Meeting of the IUFRO, Working Party on Root Physiology and Symbiosis
Download or read book Urban and Community Forestry in the Northeast written by John E. Kuser and published by Springer Science & Business Media. This book was released on 2006-11-14 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a textbook for Urban/Community Forestry courses and a handbook for Shade Tree Commissions, tree wardens, State and National Forestry Services, and professional societies. It is the most complete text in this field because it addresses both culture and management, and the chapters have been written by experts who are active practitioners. The book provides observations and examples relevant to every urban center in the U.S. and elsewhere.
