Impact of Chemical Amendment of Dairy Cattle Slurry on Soil Phosphorus Dynamics Following Application to Five Soils

R. B. Brennan; D. P. Wall; O. Fenton; J. Grant; A. N. Sharpley; M. G. Healy

doi:10.1080/00103624.2014.912293

Impact of Chemical Amendment of Dairy Cattle Slurry on Soil Phosphorus Dynamics Following Application to Five Soils

R. B. Brennan, D. P. Wall, O. Fenton, J. Grant, A. N. Sharpley, M. G. Healy

Civil Engineering

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

13 Citations (Scopus)

Abstract

A 9-month incubation study was conducted to investigate the effectiveness of amending dairy cattle slurry with either alum, lime, poly-aluminum chloride (PAC), or ferric chloride (FeCl₃) in reducing water-extractable P (WEP) levels in five soils (four mineral and one organic). Alum, lime, and PAC were the most effective amendments in decreasing WEP (compared to a slurry-control) for the four mineral soils (by an average of 47% at the end the 9-month incubation period). In comparison, FeCl₃ increased WEP (compared to the slurry-control) by an average of 35% at the end the study. None of the amendments examined effectively reduced WEP of the organic soil. No amendment reduced soil-test P [(Morgan's P (P_m) and Mehlich 3 P (M3P)] compared to the soil-only treatment. Alum maintained the greatest levels of M3P across the four mineral soils with the least risk of P loss to overlying water.

Original language	English
Pages (from-to)	2215-2233
Number of pages	19
Journal	Communications in Soil Science and Plant Analysis
Volume	45
Issue number	16
DOIs	https://doi.org/10.1080/00103624.2014.912293
Publication status	Published - Sep 2014

Keywords

Alum
lime
management practices
poly-aluminum chloride
soil-test phosphorus
water-extractable phosphorus

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10.1080/00103624.2014.912293

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title = "Impact of Chemical Amendment of Dairy Cattle Slurry on Soil Phosphorus Dynamics Following Application to Five Soils",

abstract = "A 9-month incubation study was conducted to investigate the effectiveness of amending dairy cattle slurry with either alum, lime, poly-aluminum chloride (PAC), or ferric chloride (FeCl3) in reducing water-extractable P (WEP) levels in five soils (four mineral and one organic). Alum, lime, and PAC were the most effective amendments in decreasing WEP (compared to a slurry-control) for the four mineral soils (by an average of 47\% at the end the 9-month incubation period). In comparison, FeCl3 increased WEP (compared to the slurry-control) by an average of 35\% at the end the study. None of the amendments examined effectively reduced WEP of the organic soil. No amendment reduced soil-test P [(Morgan's P (Pm) and Mehlich 3 P (M3P)] compared to the soil-only treatment. Alum maintained the greatest levels of M3P across the four mineral soils with the least risk of P loss to overlying water.",

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doi = "10.1080/00103624.2014.912293",

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AU - Brennan, R. B.

AU - Wall, D. P.

AU - Fenton, O.

AU - Grant, J.

AU - Sharpley, A. N.

AU - Healy, M. G.

PY - 2014/9

Y1 - 2014/9

N2 - A 9-month incubation study was conducted to investigate the effectiveness of amending dairy cattle slurry with either alum, lime, poly-aluminum chloride (PAC), or ferric chloride (FeCl3) in reducing water-extractable P (WEP) levels in five soils (four mineral and one organic). Alum, lime, and PAC were the most effective amendments in decreasing WEP (compared to a slurry-control) for the four mineral soils (by an average of 47% at the end the 9-month incubation period). In comparison, FeCl3 increased WEP (compared to the slurry-control) by an average of 35% at the end the study. None of the amendments examined effectively reduced WEP of the organic soil. No amendment reduced soil-test P [(Morgan's P (Pm) and Mehlich 3 P (M3P)] compared to the soil-only treatment. Alum maintained the greatest levels of M3P across the four mineral soils with the least risk of P loss to overlying water.

AB - A 9-month incubation study was conducted to investigate the effectiveness of amending dairy cattle slurry with either alum, lime, poly-aluminum chloride (PAC), or ferric chloride (FeCl3) in reducing water-extractable P (WEP) levels in five soils (four mineral and one organic). Alum, lime, and PAC were the most effective amendments in decreasing WEP (compared to a slurry-control) for the four mineral soils (by an average of 47% at the end the 9-month incubation period). In comparison, FeCl3 increased WEP (compared to the slurry-control) by an average of 35% at the end the study. None of the amendments examined effectively reduced WEP of the organic soil. No amendment reduced soil-test P [(Morgan's P (Pm) and Mehlich 3 P (M3P)] compared to the soil-only treatment. Alum maintained the greatest levels of M3P across the four mineral soils with the least risk of P loss to overlying water.

KW - Alum

KW - lime

KW - management practices

KW - poly-aluminum chloride

KW - soil-test phosphorus

KW - water-extractable phosphorus

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DO - 10.1080/00103624.2014.912293

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JO - Communications in Soil Science and Plant Analysis

JF - Communications in Soil Science and Plant Analysis

IS - 16

ER -

Impact of Chemical Amendment of Dairy Cattle Slurry on Soil Phosphorus Dynamics Following Application to Five Soils

Abstract

Keywords

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