Download or read book Foliar nutrient status of young red spruce and balsam fir in a fertilized stand written by Miroslaw M. Czapowskyj and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Average dry weight and nutrient levels in current foliage from red spruce and balsam fir seedlings and saplings in the understory of a 25-year old aspen and birch stand were observed 3 years after N, P, and lime treatments were applied. Elemental concentrations were plotted as a function of needle weight and quantity of element per needle. This allows interpretation of treatment effect on overall nutrient levels for both concentration and quantity of each element in the foliage. In balsam fir, dry weight per needle was significantly increased by N fertilizer. Nitrogen also significantly affected levels of ash, N, P, K, Ca, Fe, Mn, Zn, and Na in balsam fir foliage. In red spruce, dry weight per needle, N, and Fe levels all responded to N fertilizer; P fertilizer affected P foliar concentration and lime significantly affected Mn levels. In both species there were significant interactions among the N, P, and lime treatments, indicating that response to one element varied according to the other elements added simultaneously. Balsam fir needles were heavier and contained higher levels of nutrients than red spruce needles. The magnitude of changes in elemental levels was generally greater for balsam fir than for red spruce.
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1981 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1981 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Service Research Paper NE written by and published by . This book was released on 1980 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dutch Elm Disease Control written by Charles O. Rexrode and published by . This book was released on 1979 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for the use of GYPCHEK to control the gypsy moth written by Franklin B. Lewis and published by . This book was released on 1979 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fertilizer Abstracts written by and published by . This book was released on 1979 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Decline of Red Spruce in the Eastern United States written by Mary B. Adams and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1980s there were several published reports of recent, unexplained increases in mortality of red spruce in the Adirondack Mountains and the northern Appalachian Mountains of the eastern United States. These reports coincided with documentation of reductions in radial growth of several species of pine in the southeastern United States, and with the severe, rapid, and widespread decline of Norway spruce, silver fir, and some hardwoods in central Europe. In all of these instances, atmospheric deposition was hypothesized as the cause of the decline. (Throughout this volume, we use the term "decline" to refer to a loosely synchronized regional-scale deterioration of tree health which is brought about by a combination of stress factors. These may be biotic or abiotic in nature, and the combinations may differ from site to site. ) Heated public debate about the causes and possible cures for these forest declines ensued. Through the course of this debate, it became clear that information about forest health and air pollution effects on forests was inadequate to meet policymakers' needs. Ecology and Decline of Red Spruce in the Eastern United States addresses that gap for eastern spruce fir forests and represents the culmination of a great deal of research conducted in recent years. The focus is on red spruce because the decline of red spruce was both dramatic and inexplicable and because of the great amount of information gathered on red spruce.
Download or read book Normal Foliar Nutrient Levels in North American Forest Trees written by Charles R. Blinn and published by . This book was released on 1989 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991-04 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1983 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fertilization and Acidic Mist Affect the Growth and Physiology of Red Spruce Picea Rubens Seedlings written by Sylvia Jeanne L'Hirondelle and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1990 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Newsletter written by and published by . This book was released on 1978 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report NE written by and published by . This book was released on 1980 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Testing and Plant Analysis for Fertilizer Recommendations January 1979 January 1989 written by Karl Schneider and published by . This book was released on 1989 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Station Bulletin written by and published by . This book was released on 1953 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 1993 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
