Anion-exchange membranes used to assess management impacts on soil nitrate

M. M. Wander; D. V. McCracken; L. M. Shuman; J. W. Johnson; J. E. Box

doi:10.1080/00103629509369455

Anion-exchange membranes used to assess management impacts on soil nitrate

M. M. Wander, D. V. McCracken, L. M. Shuman, J. W. Johnson, J. E. Box

Research output: Contribution to journal › Article › peer-review

Abstract

Our goal was to determine if anion-exchange membranes (AEMs), which can be placed in situ in soils and act as anion exchangers, were better soil nitrate (NO_3-) assessment tools than soil extraction. During winter 1993–1994 we compared NO_3-in the surface of tilled and non-tilled soils that were subjected to rye cover crop and fallow winter coverage treatments. Estimates of soil solution concentrations of NO_3-based on KCl extracts of the AEMs were between 1 to 5 fold higher than concentrations based on soil extracts. Both methods of NO_3-assessment documented a general decline in N_O3-availability during the winter; however, only the AEM NO_3-data produced statistically significant results. AEM data suggested that the combination of fall tillage and winter fallowing increased soil NO_3-contents and led to more potential for loss of NO_3-during the 1993–1994 winter than reduced tillage practices or planting a rye cover crop.

Original language	English (US)
Pages (from-to)	2383-2390
Number of pages	8
Journal	Communications in Soil Science and Plant Analysis
Volume	26
Issue number	15-16
DOIs	https://doi.org/10.1080/00103629509369455
State	Published - Sep 1 1995

ASJC Scopus subject areas

Agronomy and Crop Science
Soil Science

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10.1080/00103629509369455

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abstract = "Our goal was to determine if anion-exchange membranes (AEMs), which can be placed in situ in soils and act as anion exchangers, were better soil nitrate (NO3-) assessment tools than soil extraction. During winter 1993–1994 we compared NO3-in the surface of tilled and non-tilled soils that were subjected to rye cover crop and fallow winter coverage treatments. Estimates of soil solution concentrations of NO3-based on KCl extracts of the AEMs were between 1 to 5 fold higher than concentrations based on soil extracts. Both methods of NO3-assessment documented a general decline in NO3-availability during the winter; however, only the AEM NO3-data produced statistically significant results. AEM data suggested that the combination of fall tillage and winter fallowing increased soil NO3-contents and led to more potential for loss of NO3-during the 1993–1994 winter than reduced tillage practices or planting a rye cover crop.",

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AU - Wander, M. M.

AU - McCracken, D. V.

AU - Shuman, L. M.

AU - Johnson, J. W.

AU - Box, J. E.

PY - 1995/9/1

Y1 - 1995/9/1

N2 - Our goal was to determine if anion-exchange membranes (AEMs), which can be placed in situ in soils and act as anion exchangers, were better soil nitrate (NO3-) assessment tools than soil extraction. During winter 1993–1994 we compared NO3-in the surface of tilled and non-tilled soils that were subjected to rye cover crop and fallow winter coverage treatments. Estimates of soil solution concentrations of NO3-based on KCl extracts of the AEMs were between 1 to 5 fold higher than concentrations based on soil extracts. Both methods of NO3-assessment documented a general decline in NO3-availability during the winter; however, only the AEM NO3-data produced statistically significant results. AEM data suggested that the combination of fall tillage and winter fallowing increased soil NO3-contents and led to more potential for loss of NO3-during the 1993–1994 winter than reduced tillage practices or planting a rye cover crop.

AB - Our goal was to determine if anion-exchange membranes (AEMs), which can be placed in situ in soils and act as anion exchangers, were better soil nitrate (NO3-) assessment tools than soil extraction. During winter 1993–1994 we compared NO3-in the surface of tilled and non-tilled soils that were subjected to rye cover crop and fallow winter coverage treatments. Estimates of soil solution concentrations of NO3-based on KCl extracts of the AEMs were between 1 to 5 fold higher than concentrations based on soil extracts. Both methods of NO3-assessment documented a general decline in NO3-availability during the winter; however, only the AEM NO3-data produced statistically significant results. AEM data suggested that the combination of fall tillage and winter fallowing increased soil NO3-contents and led to more potential for loss of NO3-during the 1993–1994 winter than reduced tillage practices or planting a rye cover crop.

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ER -

Anion-exchange membranes used to assess management impacts on soil nitrate

Abstract

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