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Sabine Ravnskov

Phosphorus in an arable coarse sandy soil profile after 74 years with different lime and P fertilizer applications

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Phosphorus in an arable coarse sandy soil profile after 74 years with different lime and P fertilizer applications. / Azeez, Musibau Oyeleke; Christensen, Julie Therese; Ravnskov, Sabine et al.

In: Geoderma, Vol. 376, 114555, 10.2020.

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Azeez, Musibau Oyeleke ; Christensen, Julie Therese ; Ravnskov, Sabine et al. / Phosphorus in an arable coarse sandy soil profile after 74 years with different lime and P fertilizer applications. In: Geoderma. 2020 ; Vol. 376.

Bibtex

@article{567e66344d4342d98b839ae262b4a57c,
title = "Phosphorus in an arable coarse sandy soil profile after 74 years with different lime and P fertilizer applications",
abstract = "The distribution of fertilizer phosphorus (P) in the soil profile affects its plant availability and the risk of P loss. We examined the P distribution and sorption in soil profiles of a field experiment initiated in 1942 on coarse sandy soil with four rates of lime (0, 4, 8 or 12 t ha−1 every 5–9 years) and two rates of P (no P or 15.6 kg P ha−1 annually). In 2016, intact soil cores were retrieved to 100 cm depth and divided into five depth intervals (0–20, 20–30, 30–50, 50–70 and 70–100 cm). Soil samples were analyzed for total P, P extracted with sodium bicarbonate (Olsen P) and water (Pw), oxalate-extractable P (Pox), iron (Feox) and aluminum (Alox), pH, carbon (C), and single point sorption index (PSI). Liming raised soil pH significantly at all depths. Addition of P increased total P, Olsen P, Pw and Pox in the upper 30 cm only. In the topsoil the extractability of P in bicarbonate (Olsen P to total P ratio) and water (Pw to total P ratio) declined with liming. Below 30 cm, soil P pools were unaffected by lime and P application. PSI increased with depth until 50–70 cm and related strongly to content of Alox, but not to Feox, Olsen P, soil C and pH. We conclude that Alox plays a dominating role for retention of P in this sandy soil profile, formed by melt-water during the Weichsel glaciation period. The retention of P in soil below 30 cm depth was strong and unaffected by addition of lime.",
keywords = "Adsorption, Liming, Phosphorus sorption index, Soil pH, Soil profile",
author = "Azeez, {Musibau Oyeleke} and Christensen, {Julie Therese} and Sabine Ravnskov and Heckrath, {Goswin Johann} and Rodrigo Labouriau and Christensen, {Bent T.} and Rub{\ae}k, {Gitte Holton}",
year = "2020",
month = oct,
doi = "10.1016/j.geoderma.2020.114555",
language = "English",
volume = "376",
journal = "Geoderma",
issn = "0016-7061",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Phosphorus in an arable coarse sandy soil profile after 74 years with different lime and P fertilizer applications

AU - Azeez, Musibau Oyeleke

AU - Christensen, Julie Therese

AU - Ravnskov, Sabine

AU - Heckrath, Goswin Johann

AU - Labouriau, Rodrigo

AU - Christensen, Bent T.

AU - Rubæk, Gitte Holton

PY - 2020/10

Y1 - 2020/10

N2 - The distribution of fertilizer phosphorus (P) in the soil profile affects its plant availability and the risk of P loss. We examined the P distribution and sorption in soil profiles of a field experiment initiated in 1942 on coarse sandy soil with four rates of lime (0, 4, 8 or 12 t ha−1 every 5–9 years) and two rates of P (no P or 15.6 kg P ha−1 annually). In 2016, intact soil cores were retrieved to 100 cm depth and divided into five depth intervals (0–20, 20–30, 30–50, 50–70 and 70–100 cm). Soil samples were analyzed for total P, P extracted with sodium bicarbonate (Olsen P) and water (Pw), oxalate-extractable P (Pox), iron (Feox) and aluminum (Alox), pH, carbon (C), and single point sorption index (PSI). Liming raised soil pH significantly at all depths. Addition of P increased total P, Olsen P, Pw and Pox in the upper 30 cm only. In the topsoil the extractability of P in bicarbonate (Olsen P to total P ratio) and water (Pw to total P ratio) declined with liming. Below 30 cm, soil P pools were unaffected by lime and P application. PSI increased with depth until 50–70 cm and related strongly to content of Alox, but not to Feox, Olsen P, soil C and pH. We conclude that Alox plays a dominating role for retention of P in this sandy soil profile, formed by melt-water during the Weichsel glaciation period. The retention of P in soil below 30 cm depth was strong and unaffected by addition of lime.

AB - The distribution of fertilizer phosphorus (P) in the soil profile affects its plant availability and the risk of P loss. We examined the P distribution and sorption in soil profiles of a field experiment initiated in 1942 on coarse sandy soil with four rates of lime (0, 4, 8 or 12 t ha−1 every 5–9 years) and two rates of P (no P or 15.6 kg P ha−1 annually). In 2016, intact soil cores were retrieved to 100 cm depth and divided into five depth intervals (0–20, 20–30, 30–50, 50–70 and 70–100 cm). Soil samples were analyzed for total P, P extracted with sodium bicarbonate (Olsen P) and water (Pw), oxalate-extractable P (Pox), iron (Feox) and aluminum (Alox), pH, carbon (C), and single point sorption index (PSI). Liming raised soil pH significantly at all depths. Addition of P increased total P, Olsen P, Pw and Pox in the upper 30 cm only. In the topsoil the extractability of P in bicarbonate (Olsen P to total P ratio) and water (Pw to total P ratio) declined with liming. Below 30 cm, soil P pools were unaffected by lime and P application. PSI increased with depth until 50–70 cm and related strongly to content of Alox, but not to Feox, Olsen P, soil C and pH. We conclude that Alox plays a dominating role for retention of P in this sandy soil profile, formed by melt-water during the Weichsel glaciation period. The retention of P in soil below 30 cm depth was strong and unaffected by addition of lime.

KW - Adsorption

KW - Liming

KW - Phosphorus sorption index

KW - Soil pH

KW - Soil profile

UR - http://www.scopus.com/inward/record.url?scp=85087478175&partnerID=8YFLogxK

U2 - 10.1016/j.geoderma.2020.114555

DO - 10.1016/j.geoderma.2020.114555

M3 - Journal article

AN - SCOPUS:85087478175

VL - 376

JO - Geoderma

JF - Geoderma

SN - 0016-7061

M1 - 114555

ER -