2020
DOI: 10.1002/jeq2.20179
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Phosphorus release from intact soil monoliths of manure‐amended fields under simulated snowmelt flooding

Abstract: Anaerobic conditions developed in soils with flooding can enhance the release of soil P to overlying water, but little information is available for soils with a long history of manure application. We examined the P release from manure‐amended soils under simulated snowmelt flooding. Intact monoliths from manured (solid swine manure [SSM] or liquid swine manure [LSM]) and unamended (control) field plots were collected from Carman, Manitoba. Monoliths were frozen for 7 d, thawed, flooded, and incubated at 4 ± 1 … Show more

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citations
Cited by 6 publications
(7 citation statements)
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References 49 publications
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“…Manure application did not result in a significant increase in porewater and floodwater DRP concentrations throughout the flooding period, contrary to the previously reported (Amarawansha et al, 2015;Concepcion et al, 2021;Lasisi et al, 2023). The long-term history of manure application in the study site with high legacy P (Olsen P of >90 mg kg −1 ) would have masked the effect of recent fresh manure application on P accumulation and P release.…”
Section: Effect Of Flooding and Manure Application On Porewater And F...contrasting
confidence: 93%
See 1 more Smart Citation
“…Manure application did not result in a significant increase in porewater and floodwater DRP concentrations throughout the flooding period, contrary to the previously reported (Amarawansha et al, 2015;Concepcion et al, 2021;Lasisi et al, 2023). The long-term history of manure application in the study site with high legacy P (Olsen P of >90 mg kg −1 ) would have masked the effect of recent fresh manure application on P accumulation and P release.…”
Section: Effect Of Flooding and Manure Application On Porewater And F...contrasting
confidence: 93%
“…Prolonged flooding of soils induces anaerobic conditions and decreases redox potentials (Ehs), thus resulting in P release (Ajmone-Marsan et al, 2006;Amarawansha et al, 2015;Hoffman et al, 2009;Scalenghe et al, 2012) through a microbial-mediated reductive dissolution of iron (Fe) and manganese (Mn) compounds (Amarawansha et al, 2015;An et al, 2020;Scalenghe et al, 2012). Even though P release is temperature dependent, significant P releases have been reported from previous studies of soils with simulated snowmelt flooding even under cold temperatures (4˚C) with and without intermittent freezing (Concepcion et al, 2021;Weerasekara et al, 2021).…”
Section: Introductionmentioning
confidence: 99%
“…porewater to floodwater through soil-water interface in these two soils. Efficient transfer of P through the soil, and across the soil-water interface to floodwater, has been reported in previous studies even under simulated snowmelt conditions where intact soil monoliths were flooded under low temperatures (Concepcion et al, 2021;Vitharana et al, 2021;Weerasekera et al, 15 2021). Linear relationships between porewater and floodwater DRP concentrations were significant in all unamended soils (R 2 from 0.34 to 0.62; p<0.05) but not when FeCl 3 -amended, except Soil 3 at FeCl 3 rate of 2.5 Mg ha -1 (Fig.…”
supporting
confidence: 56%
“…The increase in porewater DRP concentrations with prolonged flooding has been previously reported from soils with varying properties flooded under varying conditions, i.e., under warm temperatures simulating summer flooding (Jayaratne et al, 2016;Kumaragamage et al, 2019), as well as under cold temperatures that simulate snowmelt flooding (Kumaragamage et al, 2020;Concepcion et al, 2021;Weerasekera et al, 2021). The enhanced P release with flooding has been mainly attributed to the reductive dissolution reactions that occur under low O 2 environment in flooded soils, resulting in the release of P associated with redox-sensitive cations, such as Fe and Mn (Scalenghe et al, 2010;Maranguit et al, 2017).…”
mentioning
confidence: 72%
“…Most studies investigating amendment effects on P release from flooded soils used packed columns or mesocosms [33][34][35]. Compared to previous studies with packed soil columns, more recent studies have shown that flooding of intact soil monoliths resulted in a more rapid development of anaerobic conditions resulting in substantial P release from soils to floodwater [13,43]. The objective of this research was to evaluate and compare P release from flooded intact monoliths of unamended, gypsum-amended, and alumamended soils under simulated snowmelt conditions and to identify possible inorganic P transformations using Visual MINTEQ modeling software.…”
Section: Introductionmentioning
confidence: 99%