Effects Of Manganese And Manganese Nitrogen Applications On Growth And Nutrition Of Douglas Fir Seedlings Classic Reprint
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Effects Of Manganese And Manganese Nitrogen Applications On Growth And Nutrition Of Douglas Fir Seedlings
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Author : M. A. Radwan
language : en
Publisher:
Release Date : 1979
Effects Of Manganese And Manganese Nitrogen Applications On Growth And Nutrition Of Douglas Fir Seedlings written by M. A. Radwan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Douglas fir categories.
Effects Of Manganese And Manganese Nitrogen Applications On Growth And Nutrition Of Douglas Fir Seedlings Classic Reprint
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Author : M. A. Radwan
language : en
Publisher: Forgotten Books
Release Date : 2018-03-17
Effects Of Manganese And Manganese Nitrogen Applications On Growth And Nutrition Of Douglas Fir Seedlings Classic Reprint written by M. A. Radwan and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-17 with Gardening categories.
Excerpt from Effects of Manganese and Manganese-Nitrogen Applications on Growth and Nutrition of Douglas-Fir Seedlings Effects of manganese (mn) on Douglas-fir grown in soil, with and without urea, and in nutrient solution were investigated. In addi tion, Mn sorption by forest soils was evaluated. Results show that Douglas - fir does not respond to added Mn and is quite tolerant to high Mn levels. Moreover, Mn sorption by soils is high. It is doubtful that Mn toxicity is of practical importance to production of Douglas-fir under forest conditions. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Effects Of Soil And Foliar Applications Of Nitrogen Fertilizers On A 20 Year Old Douglas Fir Stand
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Author : Richard E. Miller
language : en
Publisher:
Release Date : 1979
Effects Of Soil And Foliar Applications Of Nitrogen Fertilizers On A 20 Year Old Douglas Fir Stand written by Richard E. Miller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Douglas fir categories.
Effects Of Fertilization On The Growth And Foliar Nutrition Of Immature Douglas Fir In The Interior Cedar Hemlock Zone Of British Columbia
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Author : Robert Peter Brockley
language : en
Publisher: University of British Columbia Press
Release Date : 2006
Effects Of Fertilization On The Growth And Foliar Nutrition Of Immature Douglas Fir In The Interior Cedar Hemlock Zone Of British Columbia written by Robert Peter Brockley and has been published by University of British Columbia Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Douglas fir categories.
"The effects of fertilization with nitrogen (N) alone, and in combination with sulphur (S), on the growth and foliar nutrition of six immature, managed Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) stands in the Interior Cedar-Hemlock (ICH) biogeoclimatic zone of British Columbia are reported 6 years after treatment. Results indicate that interior Douglas-fir stands growing on circummesic sites within the ICH zone are generally responsive to fertilization. Disregarding results from one installation that was damaged by Armillaria root disease, average net volume response following fertilization with N alone was 13.5 m3/ha (range: 6.5-24 m3/ha) compared to the control treatment. Six-year volume gains from N+S additions averaged 16 m3/ha (range: 10-23 m3/ha). In relative terms, stand volume responses to fertilization with N and N+S averaged 24% (range: 8-41%) and 28% (range: 16-39%), respectively. Growth projections generated by the tipsy growth and yield program indicate that the accelerated stand development following a single fertilizer application will likely reduce biological rotations (i.e., culmination of mean annual increment) and technical rotations (e.g., minimum harvestable age) by 2-3 years. Relative growth responses compare favourably with results from Douglas-fir fertilization studies in other jurisdictions.??Pre- and post-fertilization foliar nutrient analyses indicate that several of the sites were marginally S deficient, and that S status deteriorated 1 year following N fertilization. Added S was readily taken up, thereby maintaining a favourable N:S balance in trees fertilized with N+S. Despite improvements in foliar S status, the incremental growth benefits of added S may be too small on most sites to justify the extra expense involved in blending and applying N+S fertilizers in large-scale aerial operations.??Results from this study, and others, indicate that pre-fertilization levels of foliar N and sulphate S (SO4) may have utility in selecting candidate stands and in making appropriate fertilizer prescriptions. For example, the largest growth responses following fertilization may be expected in stands with pre-fertilization foliar N levels less than 11.5 g/kg ( 13 g/kg when using dry combustion analytical methods). Also, low foliar N combined with small amounts of pre-fertilization foliar SO4 (
Response Of Douglas Fir Seedlings To Nitrogen Sulfur And Phosphorus Fertilizers
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Author : M. A. Radwan
language : en
Publisher:
Release Date : 1985
Response Of Douglas Fir Seedlings To Nitrogen Sulfur And Phosphorus Fertilizers written by M. A. Radwan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Douglas fir categories.
Handbook Of Plant Nutrition
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Author : Allen V. Barker
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Handbook Of Plant Nutrition written by Allen V. Barker and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Science categories.
The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.
Conifer Seedling Mineral Nutrition
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Author : R. van den Driessche
language : en
Publisher: CRC Press
Release Date : 1990-12-13
Conifer Seedling Mineral Nutrition written by R. van den Driessche and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-12-13 with Science categories.
Conifer Seedling Mineral Nutrition provides a comprehensive review of conifer seedling mineral nutrition and its significance to forestry. The book covers relationships between mineral supply and uptake; the effects of nutrition on seedling growth; an integration of the ideas of T. Ingestad with classical growth analysis concepts; practical aspects of assessing nutrient status and details of fertilizing bare root and container nursery stock; and fertilizing vegetative propagules. The book also describes and illustrates Mycorrhizas, assessing their importance to plantation establishment in an analysis of recent papers reporting field trials. The effects of nutrients on stress resistance and establishment when applied in the nursery and while planting are discussed in the final chapter. It will prove useful to reforestation research workers, nurserymen, and silviculturalists and should be considered essential reading for forestry students.
Spruce Monocultures In Central Europe
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Author : Emil Klimo
language : en
Publisher:
Release Date : 2000
Spruce Monocultures In Central Europe written by Emil Klimo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Electronic books categories.
Physiological Ecology Of North American Plant Communities
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Author : Brain F. Chabot
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Physiological Ecology Of North American Plant Communities written by Brain F. Chabot and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Although, as W.D. Billings notes in his chapter in this book. the development of physiological ecology can be traced back to the very beginnings of the study of ecology it is clear that the modern development of this field in North America is due in the large part to the efforts of Billings alone. The foundation that Billings laid in the late 1950s came from his own studies on deserts and subsequently arctic and alpine plants, and also from his enormous success in instilling enthusiasm for the field in the numerous students attracted to the plant ecology program at Duke University. Billings' own studies provided the model for subsequent work in this field. Physiological techniques. normally confined to the laboratory. were brought into the field to examine processes under natural environmental conditions. These field studies were accompanied by experiments under controlled conditions where the relative impact of various factors could be assessed and further where genetic as opposed to environmental influences could be separated. This blending of field and laboratory approaches promoted the design of experiments which were of direct relevance to understanding the distribution and abundance of plants in nature. Physiological mechanisms were studied and assessed in the context of the functioning of plants under natural conditions rather than as an end in itself.
Nitrogen Fixation In Acacias
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Author : John Brockwell
language : en
Publisher:
Release Date : 2005
Nitrogen Fixation In Acacias written by John Brockwell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Acacia categories.
2. The plant; 3. The bacteria; 4. The symbiosis; 5. Enhancement of the symbiosis; 6. Exploitation of the symbiosis; 7. General conclusions and prognosis.