Nitrogen volatilization from Arizona irrigation waters

E. R. Norton; J. C. Silvertooth

doi:10.1080/00103620802292608

Nitrogen volatilization from Arizona irrigation waters

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

Abstract

A laboratory study was initiated to investigate the effects of temperature (25, 30, 35, and 40°C) and water quality on the loss of fertilizer nitrogen (N) through volatilization out of irrigation waters collected from 10 different Arizona sources. A 300-mL volume of each water source was placed in 450-mL beakers open to the atmosphere in a constant-temperature water bath with 10 mg of analytical-grade ammonium sulfate [(NH4)2SO4] dissolved into each sample. Small aliquots were drawn at specific time intervals over a 24-h period and then analyzed for ammonium (NH4 +)-N and nitrate (NO3 -)-N concentrations. Results showed potential losses from volatilization to be highly temperature dependent. Total losses (after 24 h) ranged from 30-48% at 25°C to more than 90% at 40°C. Volatilization loss of fertilizer N from irrigation waters was found to be significant and should be considered when making decisions regarding fertilizer N applications for crop production in Arizona particularly when using ammonia-based fertilizers.

Original language	English (US)
Pages (from-to)	2378-2397
Number of pages	20
Journal	Communications in Soil Science and Plant Analysis
Volume	39
Issue number	15-16
DOIs	https://doi.org/10.1080/00103620802292608
State	Published - Sep 2008

Keywords

Irrigation water
Nitrogen
Volatilization

ASJC Scopus subject areas

Agronomy and Crop Science
Soil Science

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10.1080/00103620802292608

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abstract = "A laboratory study was initiated to investigate the effects of temperature (25, 30, 35, and 40°C) and water quality on the loss of fertilizer nitrogen (N) through volatilization out of irrigation waters collected from 10 different Arizona sources. A 300-mL volume of each water source was placed in 450-mL beakers open to the atmosphere in a constant-temperature water bath with 10 mg of analytical-grade ammonium sulfate [(NH4)2SO4] dissolved into each sample. Small aliquots were drawn at specific time intervals over a 24-h period and then analyzed for ammonium (NH4 +)-N and nitrate (NO3 -)-N concentrations. Results showed potential losses from volatilization to be highly temperature dependent. Total losses (after 24 h) ranged from 30-48% at 25°C to more than 90% at 40°C. Volatilization loss of fertilizer N from irrigation waters was found to be significant and should be considered when making decisions regarding fertilizer N applications for crop production in Arizona particularly when using ammonia-based fertilizers.",

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AU - Norton, E. R.

AU - Silvertooth, J. C.

PY - 2008/9

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N2 - A laboratory study was initiated to investigate the effects of temperature (25, 30, 35, and 40°C) and water quality on the loss of fertilizer nitrogen (N) through volatilization out of irrigation waters collected from 10 different Arizona sources. A 300-mL volume of each water source was placed in 450-mL beakers open to the atmosphere in a constant-temperature water bath with 10 mg of analytical-grade ammonium sulfate [(NH4)2SO4] dissolved into each sample. Small aliquots were drawn at specific time intervals over a 24-h period and then analyzed for ammonium (NH4 +)-N and nitrate (NO3 -)-N concentrations. Results showed potential losses from volatilization to be highly temperature dependent. Total losses (after 24 h) ranged from 30-48% at 25°C to more than 90% at 40°C. Volatilization loss of fertilizer N from irrigation waters was found to be significant and should be considered when making decisions regarding fertilizer N applications for crop production in Arizona particularly when using ammonia-based fertilizers.

AB - A laboratory study was initiated to investigate the effects of temperature (25, 30, 35, and 40°C) and water quality on the loss of fertilizer nitrogen (N) through volatilization out of irrigation waters collected from 10 different Arizona sources. A 300-mL volume of each water source was placed in 450-mL beakers open to the atmosphere in a constant-temperature water bath with 10 mg of analytical-grade ammonium sulfate [(NH4)2SO4] dissolved into each sample. Small aliquots were drawn at specific time intervals over a 24-h period and then analyzed for ammonium (NH4 +)-N and nitrate (NO3 -)-N concentrations. Results showed potential losses from volatilization to be highly temperature dependent. Total losses (after 24 h) ranged from 30-48% at 25°C to more than 90% at 40°C. Volatilization loss of fertilizer N from irrigation waters was found to be significant and should be considered when making decisions regarding fertilizer N applications for crop production in Arizona particularly when using ammonia-based fertilizers.

KW - Irrigation water

KW - Nitrogen

KW - Volatilization

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ER -

Nitrogen volatilization from Arizona irrigation waters

Abstract

Keywords

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