Soil health tradeoffs may be minimal in phosphorus-enriched Coastal Plain soils

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Author(s)Mosesso, Lauren R.
Author(s)Shober, Amy L.
Date Accessioned2023-06-15T14:25:03Z
Date Available2023-06-15T14:25:03Z
Publication Date2023-03-31
DescriptionThis article was originally published in Agricultural & Environmental Letters. The version of record is available at: https://doi.org/10.1002/ael2.20101. © 2023 The Authors. Agricultural & Environmental Letters published byWiley Periodicals LLC on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.
AbstractSoil health practices can improve soil conditions and provide ecosystem services, but increased risk of phosphorus (P) loss can be an unintended consequence. We investigated conservation tillage and cover crops effects on soil P stratification, P accumulation at depth, and soil aggregation for sandy Coastal Plain soils from the Mid-Atlantic United States soil cores from 10 agricultural fields with 0–15 years of conservation tillage or cover cropping were analyzed for Mehlich-3 P and dry aggregate stability. We found no evidence that conservation tillage or cover cropping caused P stratification or accumulation in study fields that were already enriched with P prior to soil health implementation. Annual particulate, dissolved runoff, and leachate P loads decreased when estimated using the North Carolina Phosphorus Loss Assessment Tool assuming no-till and cover crops (soil health) compared to conventional till and winter fallow (conventional). We suggest that soil health practices are unlikely to exacerbate P losses from high P Coastal Plain soils beyond their initial risk profile. Core Ideas: - Soil health practices may increase the risk of surface and subsurface phosphorus (P) loss in P-enriched soils. - Soil P stratification in 10 fields with and without soil health practices were compared. - There is no evidence that soil health practices increased the risk for dissolved soil P losses. - Soil health practices may reduce P loads in fields with significant sources of dissolved P. Abbreviations: DP dissolved phosphorus NC-PLAT North Carolina Phosphorus Loss Assessment Tool PP particulate phosphorus
SponsorThis work was funded with support from the Northeast Sustainable Agriculture Research & Extension under project GNE19-210-33243. The authors gratefully acknowledge Shawn Tingle, Jamie Taraila, Duke Williams, and Jeremy Newswanger for their assistance with fieldwork and Karen Gartley, Joe Paller, Chander Lekha, Jo Ann Payne, and Riss Hardcastle for their assistance with sample analysis. The authors would like to thank all farmer cooperators who allowed access and soil collection on their fields.
CitationMosesso, L. R., & Shober, A. L. (2023). Soil health tradeoffs may be minimal in phosphorus-enriched Coastal Plain soils. Agricultural & Environmental Letters, 8, e20101. https://doi.org/10.1002/ael2.20101
ISSN2471-9625
URLhttps://udspace.udel.edu/handle/19716/32930
Languageen_US
PublisherAgricultural & Environmental Letters
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
TitleSoil health tradeoffs may be minimal in phosphorus-enriched Coastal Plain soils
TypeArticle
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