Download or read book Fertilization of 2 0 Ponderosa Pine Seedlings in the Nursery and Field written by John F. Gleason and published by . This book was released on 1988 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-year-old ponderosa pine (Pinus ponderosa Laws.) from two seed sources were grown at two nurseries. The Fremont seed source was raised at Bend and Stone Nursery; the Ochoco was grown at only the Bend Nursery. The seedlings were fertilized in late September-early October with nitrogen (N) or nitrogen plus potassium (NK). Foliar nutrient analysis at the time of lifting indicated both the N and NK treatments increased N concentration 7-10% in two of the three nursery/seed source combinations but had no effect on the Other. The added K had no effect on K concentrations. None of the nursery treatments had any significant effect on any of the morphological characteristics measured in all three nursery/seed source combinations. The N treated seedlings from both seed sources at the Bend nursery appeared to be less susceptible to frost damage. In seedlings from the same nursery, there were no differences in mean days to budbreak among any of the treatments. The seedlings were lifted from the nurseries and planted back to their respective seed source sites. One-half of the seedlings at both sites were fertilized with a slow-release fertilizer one month after planting. There were no nursery treatment or field fertilizer treatment differences in first-year survival, which ranged from 96- 100%, although there were slight survival differences between nurseries at the Fremont site. Foliar samples taken immediately before the slow-release fertilizer application indicated that the NK nursery treatment at the Fremont site was the only nursery treatment with increased N concentration. These seedlings grew 26% more than the control seedlings and 19% more than the N treated trees during their first growing season in the field. Compared to non-field fertilized trees, the field fertilized seedlings at the Fremont site had higher foliar N concentrations and contents and heavier fascicles by the end of the first growing season although the non-field fertilized trees grew 12% more. At the Ochoco field site, the nursery fertilizer and field fertilizer treatments had no effect on seedling N levels or first year survival and growth. At the beginning of the growing season at the Fremont site, seedlings from the Bend nursery had heavier fascicles and greater N concentrations and contents than the Stone Nursery's seedlings. However, the Stone Nursery trees grew 44% more during the first growing season. The seedlings responded differently depending upon the field site at which they were planted. A graphical representation of the changes in fascicle weight, nutrient concentration, and nutrient content during the first growing season assisted in the interpretation of the responses at the two sites and provided an indication of the potential for future growth. The fascicle weights and N concentrations and contents of the Fremont site (the harsher, less fertile location) trees decreased 23%, 14%, and 33% respectively. At the Ochoco, the fascicle weights decreased just 6% and N concentration increased 14% although Ochoco seedlings grew less than those on the Fremont during the first growing season. The higher nutrient levels and heavier fascicles exhibited by the Ochoco trees could be a good indicator of how those seedlings respond in the coming years. Second year results should be analyzed before any final conclusions are made about this study, especially concerning field fertilization and how the seedling responses vary by site.
Download or read book Container grown Ponderosa Pine Seedlings Respond to Fertilization written by David P. Trujillo and published by . This book was released on 1976 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Proceedings Forest and Conservation Nursery Associations written by and published by . This book was released on 2003 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1998 contains proceedings for: Southern Forest Nursery Association Conference; Northeastern Forest Nursery Association Conference; and the combined Forest Nursery Association of British Columbia/Western Forest and Conservation Nursery Association meeting.
Download or read book Forest Nursery Manual Production of Bareroot Seedlings written by Mary L. Duryea and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book National Proceedings written by and published by . This book was released on 2003 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response of Individual Ponderosa Pine Trees to Fertilization written by P. H. Cochran and published by . This book was released on 1973 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conifer Cold Hardiness written by F.J. Bigras and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conifer Cold Hardiness provides an up-to-date synthesis by leading scientists in the study of the major physiological and environmental factors regulating cold hardiness of conifer tree species. This state-of-the-art reference comprehensively explains current understanding of conifer cold hardiness ranging from the gene to the globe and from the highly applied to the very basic. Topics addressed encompass cold hardiness from the perspectives of ecology, ecophysiology, acclimation and deacclimation, seedling production and reforestation, the impacts of biotic and abiotic factors, and methods for studying and analyzing cold hardiness. The content is relevant to geneticists, ecologists, stress physiologists, environmental and global change scientists, pathologists, advanced nursery and silvicultural practitioners, and graduate students involved in plant biology, plant physiology, horticulture and forestry with an interest in cold hardiness.
Download or read book Manual for Exponential Nutrient Loading of Seedlings to Improve Outplanting Performance on Competitive Forest Sites written by V. R. Timmer and published by . This book was released on 1996 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a review of principles and technology of exponential fertilisation and nutrient loading for container stock production, an examination of the growth and nutritional responses of loaded seedlings planted on competitive sites, and information for implementing exponential nutrient loading practices on an operational basis. The loading technique presented improves the competitiveness of containerised seedlings planted on vegetation-rich mixedwood sites by promoting initial growth performance and weed suppression. The approach is based on two new preconditioning practices which promote steady-state luxury consumption of nutrients in seedlings for outplanting.
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 34 (thesis year 1989) a total of 13,377 theses titles from 26 Canadian and 184 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 34 reports theses submitted in 1989, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book Controlled Release Fertilizers for Sustainable Agriculture written by F.B Lewu and published by Academic Press. This book was released on 2020-10-14 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Controlled Release Fertilizers for Sustainable Agriculture provides a comprehensive examination of precision fertilizer applications using the 4-R approach—the right amount of fertilizer at the right time to the right plant at the correct stage of plant growth. This volume consolidates detailed information on each aspect of controlled release fertilizers, including up-to-date literature citations, the current market for controlled release fertilizers and patents. Presenting the tremendous advances in experimental and theoretical studies on sustainable agriculture and related areas, this book provides in-depth insight into state-of-the-art controlled release mechanisms of fertilizers, techniques, and their use in sustainable agriculture. Conventional release mechanisms have historically meant waste of fertilizers and the adverse effects of that waste on the environment. Controlled release delivery makes significant strides in enhancing fertilizer benefit to the target plant, while protecting the surrounding environment and increasing sustainability. Presents cutting-edge interdisciplinary insights specifically focused on the controlled release of fertilizers Explores the benefits and challenges of 4-R fertilizer use Includes expertise from leading researchers in the fields of agriculture, polymer science, and nanotechnology working in industry, academics, government, and private research institutions across the globe Presents the tremendous advances in experimental and theoretical studies on sustainable agriculture and related areas
Download or read book Science and stewardship to protect and sustain wilderness values written by and published by . This book was released on 2003 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response of Thinned Ponderosa Pine to Fertilization written by P. H. Cochran and published by . This book was released on 1979 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings RMRS written by and published by . This book was released on 1998 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Insect and Disease Conditions in the United States written by and published by . This book was released on with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Container grown Ponderosa Pine Seedlings Outperform Bareroot Seedlings on Harsh Sites in Southern Utah written by John P. Sloan and published by . This book was released on 1987 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fertilization and Spacing Effects on Growth of Planted Ponderosa Pine written by P. H. Cochran and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tree Planters Notes written by and published by . This book was released on 1972 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some no. include reports compiled from information furnished by State Foresters (and others)
