Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran Site
Broadcast fertilization with an array of amendments was investigated for its capacity to stimulate growth and enhance nutrition of a three-year-old Jeffrey pine (Pinus jeffreyi Grev. & Balf.) plantation growing on an acidic Sierra Nevada surface mine. Four formulations that differed in N source...
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Format: | Article |
Language: | English |
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Wiley
2011-01-01
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Series: | International Journal of Forestry Research |
Online Access: | http://dx.doi.org/10.1155/2011/980670 |
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author | Roger F. Walker |
author_facet | Roger F. Walker |
author_sort | Roger F. Walker |
collection | DOAJ |
description | Broadcast fertilization with an array of amendments was investigated for its capacity to stimulate growth and enhance nutrition of a three-year-old Jeffrey pine (Pinus jeffreyi Grev. & Balf.) plantation growing on an acidic Sierra Nevada surface mine. Four formulations that differed in N source, duration of release, and the suite of nutrients provided were evaluated, with each applied using four rates. Free Flow 29-3-4, a conventional amendment featuring urea as its near exclusive N source, and High N 22-4-6, a controlled release formulation containing ammoniacal, nitrate, and urea N, were the most stimulatory while an organic formulation relying exclusively on a municipal biosolid N source, Milorganite 6-2-0, was the least so. The lowest application rates employed were inadequate while the most advantageous was not the highest rate for any formulation. Foliar analysis revealed that improved N nutrition was probably critical in the favorable growth responses to fertilization, that of P was a likely contributor, and amelioration of potential Mn toxicity may have assumed an accessory role. |
format | Article |
id | doaj-art-231a962155e8410091b381137e9ed1b4 |
institution | Kabale University |
issn | 1687-9368 1687-9376 |
language | English |
publishDate | 2011-01-01 |
publisher | Wiley |
record_format | Article |
series | International Journal of Forestry Research |
spelling | doaj-art-231a962155e8410091b381137e9ed1b42025-02-03T05:57:40ZengWileyInternational Journal of Forestry Research1687-93681687-93762011-01-01201110.1155/2011/980670980670Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran SiteRoger F. Walker0Department of Natural Resources and Environmental Science, University of Nevada, 1000 Valley Road, Reno, NV 89512, USABroadcast fertilization with an array of amendments was investigated for its capacity to stimulate growth and enhance nutrition of a three-year-old Jeffrey pine (Pinus jeffreyi Grev. & Balf.) plantation growing on an acidic Sierra Nevada surface mine. Four formulations that differed in N source, duration of release, and the suite of nutrients provided were evaluated, with each applied using four rates. Free Flow 29-3-4, a conventional amendment featuring urea as its near exclusive N source, and High N 22-4-6, a controlled release formulation containing ammoniacal, nitrate, and urea N, were the most stimulatory while an organic formulation relying exclusively on a municipal biosolid N source, Milorganite 6-2-0, was the least so. The lowest application rates employed were inadequate while the most advantageous was not the highest rate for any formulation. Foliar analysis revealed that improved N nutrition was probably critical in the favorable growth responses to fertilization, that of P was a likely contributor, and amelioration of potential Mn toxicity may have assumed an accessory role.http://dx.doi.org/10.1155/2011/980670 |
spellingShingle | Roger F. Walker Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran Site International Journal of Forestry Research |
title | Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran Site |
title_full | Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran Site |
title_fullStr | Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran Site |
title_full_unstemmed | Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran Site |
title_short | Postplanting Nutritional Augmentation of Jeffrey Pine Seedlings on an Infertile Sierran Site |
title_sort | postplanting nutritional augmentation of jeffrey pine seedlings on an infertile sierran site |
url | http://dx.doi.org/10.1155/2011/980670 |
work_keys_str_mv | AT rogerfwalker postplantingnutritionalaugmentationofjeffreypineseedlingsonaninfertilesierransite |