Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada
Repetitive long-term fertilizer application leads to phosphorus (P) accumulation in agricultural soils. This can pose environmental risks if the soil’s phosphorus storage capacity is not well understood and considered when planning nutrient management. We investigated the P sorption capacity (PSC) i...
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Online Access: | http://dx.doi.org/10.3389/fsoil.2022.931266 https://www.frontiersin.org/articles/10.3389/fsoil.2022.931266/full |
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crfrontiers:10.3389/fsoil.2022.931266 2024-09-15T18:20:20+00:00 Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada Kedir, Amana Jemal Nyiraneza, Judith Hawboldt, Kelly Anne McKenzie, David Bruce Unc, Adrian Natural Sciences and Engineering Research Council of Canada Memorial University of Newfoundland Department of Fisheries and Aquaculture, Government of Newfoundland and Labrador 2022 http://dx.doi.org/10.3389/fsoil.2022.931266 https://www.frontiersin.org/articles/10.3389/fsoil.2022.931266/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Soil Science volume 2 ISSN 2673-8619 journal-article 2022 crfrontiers https://doi.org/10.3389/fsoil.2022.931266 2024-07-30T04:05:05Z Repetitive long-term fertilizer application leads to phosphorus (P) accumulation in agricultural soils. This can pose environmental risks if the soil’s phosphorus storage capacity is not well understood and considered when planning nutrient management. We investigated the P sorption capacity (PSC) in the surface (0-20 cm, n = 23) and subsurface (20-40 cm, n = 23) of long-term managed podzolic soils in Newfoundland (Nfld), Canada, through batch adsorption using two P concentrations of 150 and 500 mg P L -1 , and developed pedotransfer functions to estimate PSC using selected soil properties. Also, the correlation between actual PSC, soil properties, and estimated Phosphorus saturation index (PSI) and soil P sorption capacity (SPSC) both from standard soil test were evaluated. The surface and subsurface soils provided similar median PSC (1.34 and 1.32 mg g -1 , respectively, p = 0.16) when examined with the 150 mg P L -1 solution. With 500 mg P L -1 solution, the subsurface soils had significantly higher median PSC than the surface soils of the same fields (2.74 and 2.27 mg g -1 , respectively, p = 0.02); and had a better linear relationship (R 2 >0.40, p <0.05) with SPSC than at the lower P concentration. The surface soils had significantly higher extractable median P in water, citric acid, and Mehlich-3, higher soil organic matter (SOM), moisture content, Mehlich-3-Fe , -Ca , and -K , PSI, electrical conductivity, silt, and clay contents, while Mehlich-3-Al , Mehlich-3-Al : Fe ratio, SPSC, and sand were lower than those in the subsurface soils. All soils had comparable pH (~6.3). Pedotransfer function revealed that the PSC could be predicted using SOM, Mehlich-3-Al , and Mehlich-3-P ICP and thus may be employed for developing testable hypotheses relevant to environmentally and economically viable P management strategies for acidic soils in boreal regions. Article in Journal/Newspaper Newfoundland Frontiers (Publisher) Frontiers in Soil Science 2 |
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Repetitive long-term fertilizer application leads to phosphorus (P) accumulation in agricultural soils. This can pose environmental risks if the soil’s phosphorus storage capacity is not well understood and considered when planning nutrient management. We investigated the P sorption capacity (PSC) in the surface (0-20 cm, n = 23) and subsurface (20-40 cm, n = 23) of long-term managed podzolic soils in Newfoundland (Nfld), Canada, through batch adsorption using two P concentrations of 150 and 500 mg P L -1 , and developed pedotransfer functions to estimate PSC using selected soil properties. Also, the correlation between actual PSC, soil properties, and estimated Phosphorus saturation index (PSI) and soil P sorption capacity (SPSC) both from standard soil test were evaluated. The surface and subsurface soils provided similar median PSC (1.34 and 1.32 mg g -1 , respectively, p = 0.16) when examined with the 150 mg P L -1 solution. With 500 mg P L -1 solution, the subsurface soils had significantly higher median PSC than the surface soils of the same fields (2.74 and 2.27 mg g -1 , respectively, p = 0.02); and had a better linear relationship (R 2 >0.40, p <0.05) with SPSC than at the lower P concentration. The surface soils had significantly higher extractable median P in water, citric acid, and Mehlich-3, higher soil organic matter (SOM), moisture content, Mehlich-3-Fe , -Ca , and -K , PSI, electrical conductivity, silt, and clay contents, while Mehlich-3-Al , Mehlich-3-Al : Fe ratio, SPSC, and sand were lower than those in the subsurface soils. All soils had comparable pH (~6.3). Pedotransfer function revealed that the PSC could be predicted using SOM, Mehlich-3-Al , and Mehlich-3-P ICP and thus may be employed for developing testable hypotheses relevant to environmentally and economically viable P management strategies for acidic soils in boreal regions. |
author2 |
Natural Sciences and Engineering Research Council of Canada Memorial University of Newfoundland Department of Fisheries and Aquaculture, Government of Newfoundland and Labrador |
format |
Article in Journal/Newspaper |
author |
Kedir, Amana Jemal Nyiraneza, Judith Hawboldt, Kelly Anne McKenzie, David Bruce Unc, Adrian |
spellingShingle |
Kedir, Amana Jemal Nyiraneza, Judith Hawboldt, Kelly Anne McKenzie, David Bruce Unc, Adrian Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada |
author_facet |
Kedir, Amana Jemal Nyiraneza, Judith Hawboldt, Kelly Anne McKenzie, David Bruce Unc, Adrian |
author_sort |
Kedir, Amana Jemal |
title |
Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada |
title_short |
Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada |
title_full |
Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada |
title_fullStr |
Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada |
title_full_unstemmed |
Phosphorus Sorption Capacity and Its Relationships With Soil Properties Under Podzolic Soils of Atlantic Canada |
title_sort |
phosphorus sorption capacity and its relationships with soil properties under podzolic soils of atlantic canada |
publisher |
Frontiers Media SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/fsoil.2022.931266 https://www.frontiersin.org/articles/10.3389/fsoil.2022.931266/full |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Frontiers in Soil Science volume 2 ISSN 2673-8619 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fsoil.2022.931266 |
container_title |
Frontiers in Soil Science |
container_volume |
2 |
_version_ |
1810458702520516608 |