Phosphorus adsorption characteristics in forested and managed podzolic soils
Abstract Despite the agricultural expansion into Canada's boreal ecoregion, little is known about the phosphorus (P) adsorption capacity in natural and managed Podzols' soil profiles. This information is critical for informing management decisions for P use efficiency and mitigating relate...
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crwiley:10.1002/saj2.20180 2024-03-31T07:54:05+00:00 Phosphorus adsorption characteristics in forested and managed podzolic soils Kedir, Amana Jemal Nyiraneza, Judith Galagedara, Lakshman Cheema, Mumtaz Hawboldt, Kelly Anne McKenzie, David Bruce Unc, Adrian Memorial University of Newfoundland 2021 http://dx.doi.org/10.1002/saj2.20180 https://onlinelibrary.wiley.com/doi/pdf/10.1002/saj2.20180 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/saj2.20180 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Soil Science Society of America Journal volume 85, issue 2, page 249-262 ISSN 0361-5995 1435-0661 Soil Science journal-article 2021 crwiley https://doi.org/10.1002/saj2.20180 2024-03-04T13:01:21Z Abstract Despite the agricultural expansion into Canada's boreal ecoregion, little is known about the phosphorus (P) adsorption capacity in natural and managed Podzols' soil profiles. This information is critical for informing management decisions for P use efficiency and mitigating related environmental risks. Thus, this study aimed to evaluate P adsorption characteristics of podzolic horizons in natural and managed soil using nonlinear Langmuir and Freundlich adsorption models. A batch adsorption experiment was conducted using soils collected from distinct horizons of forested and managed fields in eastern and central Newfoundland, Canada. Nonlinear Langmuir and Freundlich fitted models had r values >.99 regardless of horizons, locations, and management history. The organic LFH, a surface horizon typical for forested Podzols, and a long‐term managed Ap horizon had the highest P retention capacities when compared to either newly converted soils or soils used as tree nursery following conversion from natural forest. A significant linear correlation and multiple regression models ( p < .05) were established between P adsorption parameters and selected soil properties. Results suggest that following conversion from forest to agricultural use, long‐term management that includes tillage and lime and fertilizer application creates an Ap horizon with strong adsorption capacity, which could still fix P and serve as a source of P. The newly converted soils and the deeper soil horizons, for both natural and converted lands, do act mainly as P sinks; hence, crops may need larger quantities of P fertilizer increasing fertilizer expenses and also increasing future legacy P. Article in Journal/Newspaper Newfoundland Wiley Online Library Canada Langmuir ENVELOPE(-67.150,-67.150,-66.967,-66.967) Soil Science Society of America Journal 85 2 249 262 |
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English |
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Soil Science |
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Soil Science Kedir, Amana Jemal Nyiraneza, Judith Galagedara, Lakshman Cheema, Mumtaz Hawboldt, Kelly Anne McKenzie, David Bruce Unc, Adrian Phosphorus adsorption characteristics in forested and managed podzolic soils |
topic_facet |
Soil Science |
description |
Abstract Despite the agricultural expansion into Canada's boreal ecoregion, little is known about the phosphorus (P) adsorption capacity in natural and managed Podzols' soil profiles. This information is critical for informing management decisions for P use efficiency and mitigating related environmental risks. Thus, this study aimed to evaluate P adsorption characteristics of podzolic horizons in natural and managed soil using nonlinear Langmuir and Freundlich adsorption models. A batch adsorption experiment was conducted using soils collected from distinct horizons of forested and managed fields in eastern and central Newfoundland, Canada. Nonlinear Langmuir and Freundlich fitted models had r values >.99 regardless of horizons, locations, and management history. The organic LFH, a surface horizon typical for forested Podzols, and a long‐term managed Ap horizon had the highest P retention capacities when compared to either newly converted soils or soils used as tree nursery following conversion from natural forest. A significant linear correlation and multiple regression models ( p < .05) were established between P adsorption parameters and selected soil properties. Results suggest that following conversion from forest to agricultural use, long‐term management that includes tillage and lime and fertilizer application creates an Ap horizon with strong adsorption capacity, which could still fix P and serve as a source of P. The newly converted soils and the deeper soil horizons, for both natural and converted lands, do act mainly as P sinks; hence, crops may need larger quantities of P fertilizer increasing fertilizer expenses and also increasing future legacy P. |
author2 |
Memorial University of Newfoundland |
format |
Article in Journal/Newspaper |
author |
Kedir, Amana Jemal Nyiraneza, Judith Galagedara, Lakshman Cheema, Mumtaz Hawboldt, Kelly Anne McKenzie, David Bruce Unc, Adrian |
author_facet |
Kedir, Amana Jemal Nyiraneza, Judith Galagedara, Lakshman Cheema, Mumtaz Hawboldt, Kelly Anne McKenzie, David Bruce Unc, Adrian |
author_sort |
Kedir, Amana Jemal |
title |
Phosphorus adsorption characteristics in forested and managed podzolic soils |
title_short |
Phosphorus adsorption characteristics in forested and managed podzolic soils |
title_full |
Phosphorus adsorption characteristics in forested and managed podzolic soils |
title_fullStr |
Phosphorus adsorption characteristics in forested and managed podzolic soils |
title_full_unstemmed |
Phosphorus adsorption characteristics in forested and managed podzolic soils |
title_sort |
phosphorus adsorption characteristics in forested and managed podzolic soils |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/saj2.20180 https://onlinelibrary.wiley.com/doi/pdf/10.1002/saj2.20180 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/saj2.20180 |
long_lat |
ENVELOPE(-67.150,-67.150,-66.967,-66.967) |
geographic |
Canada Langmuir |
geographic_facet |
Canada Langmuir |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Soil Science Society of America Journal volume 85, issue 2, page 249-262 ISSN 0361-5995 1435-0661 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/saj2.20180 |
container_title |
Soil Science Society of America Journal |
container_volume |
85 |
container_issue |
2 |
container_start_page |
249 |
op_container_end_page |
262 |
_version_ |
1795034678622683136 |