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| DOI: | 10.2134/jeq2010.0441 |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/41/2/420
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https://dl.sciencesocieties.org/publications/jeq/articles/41/2/420?highlight=
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Uusi-Kämppä, J.;
Turtola, E.;
Närvänen, A.;
Jauhiainen, L.;
Uusitalo, R. |
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| Author Affiliation: | MTT Agrifood Research Finland, Plant Production Research, Jokioinen, Finland |
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| Title: | Phosphorous mitigation during springtime runoff by amendments applied to grassed soil |
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| Section: | Riparian buffer strips as a multifunctional tool in agricultural landscapes
Other records with the "Riparian buffer strips as a multifunctional tool in agricultural landscapes" Section
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| Source: | Journal of Environmental Quality. Vol. 41, No. 2, March 2012, p. 420-426. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 7 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/jeq/abstracts/41/2/420
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website
Notes: Abstract only |
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| Keywords: | TIC Keywords: Calcium; Control methods; Erosion control; Evaluations; Iron; Phosphorus; Soil amendments; Spring green-up; Surface runoff; Vegetative establishment
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| Abstract/Contents: | "Permanent grass vegetation on sloping soils is an option to protect fields from erosion, but decaying grass may liberate considerable amounts of dissolved reactive P (DRP) in springtime runoff. We studied the effects of freezing and thawing of grassed soil on surface runoff P concentrations by indoor rainfall simulations and tested whether the peak P concentrations could be reduced by amending the soil with P-binding materials containing Ca or Fe. Forty grass-vegetated soil blocks (surface area 0.045 m2, depth 0.07 m) were retrieved from two permanent buffer zones on a clay and loam soil in southwest Finland. Four replicates were amended with either: (i) gypsum from phosphoric acid processing (CaSO4 2H2O, 6 t ha-1), (ii) chalk powder (CaCO3, 3.3 t ha-1), (iii) Fegypsum (6 t ha-1) from TiO2 processing, or (iv) granulated ferric sulfate (Fe2[SO4]3, 0.7 t ha-1), with four replicates serving as untreated controls. Rainfall (3.3 h 5 mm h-1) was applied on presaturated samples set at a slope of 5% and the surface runoff was analyzed for DRP, total dissolved P (TDP), total P (TP), and suspended solids. Rainfall simulation was repeated twice after the samples were frozen. Freezing and thawing of the samples increased the surface runoff DRP concentration of the control treatment from 0.19 to 0.46 mg L-1, up to 2.63.7 mg L-1, with DRP being the main P form in surface runoff. Compared with the controls, surface runoff from soils amended with Fe compounds had 57 to 80% and 47 to 72% lower concentrations of DRP and TP, respectively, but the gypsum and chalk powder did not affect the P concentrations. Thus, amendments containing Fe might be an option to improve DRP retention in, e.g., buffer zones." |
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| Language: | English |
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| References: | 45 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Uusi-Kämppä, J., E. Turtola, A. Närvänen, L. Jauhiainen, and R. Uusitalo. 2012. Phosphorous mitigation during springtime runoff by amendments applied to grassed soil. J. Environ. Qual. 41(2):p. 420-426. |
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| DOI: 10.2134/jeq2010.0441 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/41/2/420
Last checked: 11/16/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/jeq/articles/41/2/420?highlight=
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2225072a |
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