Speciation and sorption of phosphorus in agricultural soil profiles of redoximorphic character

Baumann, Karen; Shaheen, Sabry M.; Hu, Yongfeng; Gros, Peter; Heilmann, Elena; Morshedizad, Mohsen; Wang, Jianxu; Wang, Shan‐Li; Rinklebe, Jörg; Leinweber, Peter

doi:10.1007/s10653-020-00561-y

Cited by 22 publications

(20 citation statements)

References 67 publications

(74 reference statements)

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“…The P sorption capacity (PSC) based on oxalate-extractable Al + Fe + Mn varied between 13 and 32 mmol kg -1 , with the highest values for the upper soil depth of each profile and decreasing PSC with increasing soil depth in each profile. In almost all depths, PSC decreased in the order upper > toe > mid-slope profile (Baumann et al, 2020). Each lysimeter was instrumented with three ceramic suction cups (P80, Umwelt-Geräte-Technik; at −20, −45, and −70 cm), three redox electrodes (ecoTech redox electrodes, ecoTech Umwelt-Meßsysteme; at −15, −40, and −65 cm), three moisture and temperature sondes (SMT-100, Umwelt-Geräte-Technik; at −15, −40, and −65 cm), and three tensiometers (Tensio 160, Umwelt-Geräte-Technik; at −15, −40, and −65 cm).…”

Section: Lysimeter Installationmentioning

confidence: 94%

“…The P sorption capacity (PSC) based on oxalate‐extractable Al + Fe + Mn varied between 13 and 32 mmol kg –1 , with the highest values for the upper soil depth of each profile and decreasing PSC with increasing soil depth in each profile. In almost all depths, PSC decreased in the order upper > toe > mid‐slope profile (Baumann et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

“…The description and analytical characterization of these monoliths at three different depths have been published by Baumann et al. (2020). In brief, the profiles were classified as Epiaquepts according to the U.S.…”

Section: Methodsmentioning

confidence: 99%

“…In brief, the profiles were classified as Epiaquepts according to the U.S. Soil Taxonomy (Soil Survey Staff, 2014) and represented a Stagnic Eutric Cambisol (CM‐st.eu, upper slope profile), Eutric Stagnosol (ST‐eu, mid‐slope profile), and Eutric Stagnosol (colluvic) (ST‐eu‐co, mid‐slope profile) according to the World Reference Base for Soil Resources (IUSS Working Group WRB, 2015), respectively, with the soil textures loamy sand consisting of 9–15% clay (generally dominated by illite and illite‐rich mixed layer minerals), 27–36% silt, and 52–58% sand (Baumann et al, 2020). The P sorption capacity (PSC) based on oxalate‐extractable Al + Fe + Mn varied between 13 and 32 mmol kg –1 , with the highest values for the upper soil depth of each profile and decreasing PSC with increasing soil depth in each profile.…”

Section: Methodsmentioning

confidence: 99%

“…The intact monoliths were excavated by drilling at the upper slope (upper slope), at mid-slope position (mid-slope), and at the bottom of a slight slope (toe slope) (Umwelt-Geräte-Technik, Müncheberg, Germany; https://www.ugt-online.de/ en/products/lysimeter-technology/). The description and analytical characterization of these monoliths at three different depths have been published by Baumann et al (2020). In brief, the profiles were classified as Epiaquepts according to the U.S.…”

Section: Lysimeter Installationmentioning

confidence: 99%

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Phosphorus cycling and spring barley crop response to varying redox potential

Baumann

Nastah

Shaheen

et al. 2020

Vadose Zone Journal

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For arable soils, it is not clear whether closing a controlled drainage system leads to P mobilization due to water table rise and associated changes in redox-induced biogeochemical processes. Therefore, we investigated P mobilization at different redox conditions using three spring barley (Hordeum vulgare L.) cropped lysimeters filled with monoliths of arable northeastern German soil profiles. Pore water samples were collected weekly from three different depths, and dissolved (<0.45 μm) element concentrations of total C, P, Al, Fe, Mn, Ca, Mg, and K, as well as inorganic and organic C (DIC and DOC) and P (P i and P o), SO 4 2−-S, and NO 2 −-N and NO 3 −-N were determined. The total P concentration in pore water collected from a given lysimeter at a given time was 1.8 mg P L − 1 maximum. Organic P concentrations in subsoil solutions were positively correlated with Fe concentrations. Grain yield of spring barley ranged between 5.6 and 6.5 Mg ha − 1, and total biomass P uptake was negatively correlated with the stable P stocks of the soil profiles. Results suggest that reductive conditions in subsoils led to dissolution of pedogenic Fe-(oxy)hydroxides and release of P o compounds, the latter of which were more important for biomass P uptake than P released from stable P compounds. Overall, closing the drainage at the field site could represent a moderate P mobilization risk, which would probably be lower compared with a P mobilization risk caused by a heavy rainfall event. Abbreviations: DIC, dissolved inorganic carbon; DOC, dissolved organic carbon; DRW, drying and rewetting; Eh, redox potential; ICP-OES, inductively coupled plasma-optical emission spectroscopy; P i , inorganic phosphorus; P o , organic phosphorus; PVC, polyvinyl chloride; TC, total carbon. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Lysimeter Installationmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Lysimeter Installationmentioning

confidence: 99%

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Phosphorus cycling and spring barley crop response to varying redox potential

Baumann

Nastah

Shaheen

et al. 2020

Vadose Zone Journal

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Fate of P from organic and inorganic fertilizers assessed by complementary approaches

Jarosch

Kavka

et al. 2022

Nutr Cycl Agroecosyst

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Long-term field experiments (LTFEs) can provide an extensive overview on the effectiveness of phosphorus (P) management. In order to have a detailed insight into the availability and distribution of the P in soil as affected by organic and inorganic fertilizers (no P, triple-superphosphate (TSP), compost and compost + TSP), soil samples collected at a LTFE established in 1998 in Northern Germany at different sampling dates and soil depths were subjected to P characterization including the double-lactate method (P-dl) as standard soil test, the degree of P sorption (DPS), the sequential P fractionation and isotopic exchange kinetics. While the type of fertilizer had rarely an effect on the soil P pools, higher amounts of P applied resulted in increased values of P-dl, labile P fractions and P that was isotopically exchangeable within 1 min (p < 0.05). The DPS values varied from on average 40.2% (no P) to 47.2% (compost + TSP) with small variations during the experimental time. In contrast, significant shifts from less available to readily available P pools were measured between the sampling in autumn 2017 and spring 2019. The differences in the P budgets between the treatments corresponded to the differences of the total P stocks in 0–90 cm, yet with an estimated upward or downward movement of P between the soil depths as consequences of long-term deficit or surplus of fertilizer P. The use of complementary methods in this study contributed to a better understanding of the potential availability of P in soil in a long term perspective.

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