Nutritional Preconditioning And Ectomycorrhizal Formation Of Picea Mariana Mill B S P Seedlings Microform
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Nutritional Preconditioning And Ectomycorrhizal Formation Of Picea Mariana Mill B S P Seedlings Microform
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Author : Ali M. Quoreshi
language : en
Publisher: National Library of Canada = Bibliothèque nationale du Canada
Release Date : 2000
Nutritional Preconditioning And Ectomycorrhizal Formation Of Picea Mariana Mill B S P Seedlings Microform written by Ali M. Quoreshi and has been published by National Library of Canada = Bibliothèque nationale du Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Nutritional Preconditioning And Ectomycorrhizal Formation Of Picea Mariana Mill B S P Seedlings
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Author :
language : en
Publisher:
Release Date : 2000
Nutritional Preconditioning And Ectomycorrhizal Formation Of Picea Mariana Mill B S P Seedlings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Nutritional Preconditioning And Ectomycorrhizal Formation Of Picea Mariana Mill B S P Seedlings
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Author : Ali M. Quoreshi
language : en
Publisher:
Release Date : 2000
Nutritional Preconditioning And Ectomycorrhizal Formation Of Picea Mariana Mill B S P Seedlings written by Ali M. Quoreshi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Ectomycorrhizal inoculated seedlings may improve forest plantation establishment by enhancing growth and nutrition of newly planted seedlings, but successful nursery colonization of planting stock is often incompatible with conventional fertilization practices because of toxic inhibitive effects. A new cultural technique for seedlings is examined, called "mycorrhizal nutrient loading" that integrates exponential high dose fertilization with ectomycorrhizal association without causing serious inhibition. Containerized black spruce ('Picea mariana' (Mill.) B.S.P.) were inoculated at sowing with 'Hebeloma crustuliniforme' or 'Laccaria bicolor ' and fertilized with a complete nutrient solution conventionally at 12.5 mg N/plant and exponentially at 12.5, 25 or 50 mg N/ plant representing conventional, loading and high loading application rates, respectively. At the end of nursery culture, exponential fertilization significantly stimulated ectomycorrhizal formation at higher rates (49-85%) than those of conventionally fertilized (22-26%) seedlings. Improved ectomycorrhizal colonization, even at high loading rates, was attributed to low initial nutrient additions and lower electrical conductivity levels maintained in the growing media under exponential fertilization. The gradual increase in nutrient delivery enabled the fungi to develop tolerance to high fertilizer inputs. Nutrient loading significantly increased N (51-135%), P (29-45%), and K (13-47%) uptake of seedlings, reflecting progressive luxury consumption of nutrients. Mycorrhizal inoculation further elevated loading efficiency by stimulating plant nutrient uptake of N (9-20%), P (7-12%), and K (4-18%), demonstrating accumulation was more efficient with fungal colonization. Vector nutrient diagnosis revealed marked nutrient dilution under conventional fertilization, but induced steady-state nutrition under exponential fertilization that benefited sustained symbiosis. When outplanted on bioassays retrieved from two contrasting boreal forest (Feathermoss and Hardwood-Alnus) sites in northern Ontario, mycorrhizal nutrient loaded seedlings outperformed conventional seedlings by enhancing dry matter production (45-92%), and increasing N (80-124%), P (89-129%), and K (72-106%) assimilation. The new growth drew on greater internal nutrient reserves built up by both exponential fertilization and mycorrhizal colonization in the nursery. Results were integrated into conceptual models demonstrating interactions of fundamental processes involved in mycorrhizal nutrient loading of trees and their resource utilization after planting in relation to different nutritional regimes. Given the current concern about adequate forest regeneration in Canada, nutrient loading in combination with mycorrhizal inoculation practices provides a potentially effective tool to improve early plantation establishment on boreal sites.
Growth Nutrient Dynamics And Outplanting Performance Of Picea Mariana Mill B S P Seedlings In Response To Fertilization During The Hardening Period Microform
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Author : Joseph R. (Joseph Robert) Boivin
language : en
Publisher: National Library of Canada = Bibliothèque nationale du Canada
Release Date : 2001
Growth Nutrient Dynamics And Outplanting Performance Of Picea Mariana Mill B S P Seedlings In Response To Fertilization During The Hardening Period Microform written by Joseph R. (Joseph Robert) Boivin and has been published by National Library of Canada = Bibliothèque nationale du Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Growth Nutrient Dynamics And Outplanting Performance Of Picea Mariana Mill B S P Seedlings In Response To Fertilization During The Hardening Period
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Author : Joseph R. Boivin
language : en
Publisher:
Release Date : 2001
Growth Nutrient Dynamics And Outplanting Performance Of Picea Mariana Mill B S P Seedlings In Response To Fertilization During The Hardening Period written by Joseph R. Boivin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Traditional nursery culture of containerized black spruce ('Picea mariana' [Mill.] B.S.P.) seedlings involves a late-season hardening period when irrigation and fertilization are withheld to stress seedlings and promote frost-hardiness. Nutrient uptake is limited without supplemental fertilization, hence growth during hardening results in severe dilution of internal nutrients. The main objective of this study was to promote nutrient uptake and avert N dilution by fertilizing seedlings during the hardening period. Growth continues during this time (15-weeks), but gradually declines at the end of the rotation. Hence, nutrient supplementation progressively diminished with time to match seedling growth rate. Fertilization initially increased N uptake and elevated N concentration above initial pre-hardening status, but uptake declined after 6 weeks when fertilization ceased, causing growth dilution and N concentration decline. Based on these findings, fertilization dosages were increased and delivery schedules were prolonged in a follow-up experiment. Prolonged high-dose regimes promoted N uptake and prevented dilution, as reflected by a sustained increase of N concentration with time. When transplanted for 12-weeks on Boreal forest soil substrates to test outplanting performance, seedlings that received prolonged high-dose fertilization during hardening resulted in 115% more biomass and 350% more N than conventionally reared seedlings. The results demonstrate that fertilization during the hardening period improves early outplanting performance of seedlings, and may benefit future reforestation in northern forests.
Growth Nutrient Dynamics And Outplanting Performance Of Picea Mariana Mill B S P Seedlings In Response To Fertilization During The Hardening Period
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Author :
language : en
Publisher:
Release Date : 2001
Growth Nutrient Dynamics And Outplanting Performance Of Picea Mariana Mill B S P Seedlings In Response To Fertilization During The Hardening Period written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Yvain
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Author : Chretien de Troyes
language : en
Publisher: Yale University Press
Release Date : 1987-09-10
Yvain written by Chretien de Troyes and has been published by Yale University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-09-10 with Poetry categories.
The twelfth-century French poet Chrétien de Troyes is a major figure in European literature. His courtly romances fathered the Arthurian tradition and influenced countless other poets in England as well as on the continent. Yet because of the difficulty of capturing his swift-moving style in translation, English-speaking audiences are largely unfamiliar with the pleasures of reading his poems. Now, for the first time, an experienced translator of medieval verse who is himself a poet provides a translation of Chrétien’s major poem, Yvain, in verse that fully and satisfyingly captures the movement, the sense, and the spirit of the Old French original. Yvain is a courtly romance with a moral tenor; it is ironic and sometimes bawdy; the poetry is crisp and vivid. In addition, the psychological and the socio-historical perceptions of the poem are of profound literary and historical importance, for it evokes the emotions and the values of a flourishing, vibrant medieval past.
My Neighbour S Shoes Or Feeling For Others A Tale
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Author : A. L. O. E.
language : en
Publisher:
Release Date : 1861
My Neighbour S Shoes Or Feeling For Others A Tale written by A. L. O. E. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1861 with categories.
Charles Pettigrew First Bishop Elect Of The North Carolina Episcopal Church
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Author : Bennett H Wall
language : en
Publisher: Hassell Street Press
Release Date : 2021-09-10
Charles Pettigrew First Bishop Elect Of The North Carolina Episcopal Church written by Bennett H Wall and has been published by Hassell Street Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-10 with categories.
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
I Have A Dog
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Author : Charlotte Lance
language : en
Publisher: Allen & Unwin
Release Date : 2014-05-01
I Have A Dog written by Charlotte Lance and has been published by Allen & Unwin this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-01 with Juvenile Fiction categories.
I have a dog. An inconvenient dog. When I wake up, my dog is inconvenient. When I'm getting dressed, my dog is inconvenient. And when I'm making tunnels, my dog is SUPER inconvenient. But sometimes, an inconvenient dog can be big and warm and cuddly. Sometimes, an inconvenient dog can be the most comforting friend in the whole wide world.