Critique of the Acetylene Blockage Technique for Field Measurement of Denitrification

Keeney, D. R.

doi:10.2136/sssaspecpub18.c8

Cited by 7 publications

(1 citation statement)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Current methods used to quantify denitrification come from different scientific domains, such as ecology, agriculture, and industrial engineering, and reflect different interests in different aspects of denitrification. Studies comparing different methods to determine denitrification reported different denitrification rates based on methodology used (Aulakh et al 1991a;Keeney 1986;Mahmoud et al 1999). Hence, the appropriate method should be identified and selected before measurements begin.…”

Section: Methods For Measuring Denitrification Ratementioning

confidence: 99%

Denitrification in Seepage-Irrigated Vegetable Fields in South Florida

Simonne

Liu

Morgant

2019

EDIS

View full text Add to dashboard Cite

The objectives of this article are to: describe denitrification and the factors known to affect its rate, present current methods available for the measurement of denitrification rate, summarize available estimates of denitrification rate, and attempt to provide guidelines on how to account for potential denitrification losses in fertilizer programs. This 11-page fact sheet is a minor revision written by Eric H. Simonne, Guodong Liu, and Benjamin Morgant, and published by the Horticultural Sciences Department, August 2019. HS1004/HS248: Denitrification in Seepage-Irrigated Vegetable Fields in South Florida (ufl.edu)

show abstract

Section: Methods For Measuring Denitrification Ratementioning

confidence: 99%

Denitrification in Seepage-Irrigated Vegetable Fields in South Florida

Simonne

Liu

Morgant

2019

EDIS

View full text Add to dashboard Cite

show abstract

Nitrogen losses from agricultural soils through denitrification ‐ a critical evaluation

Rheinbaben

1990

J Plant Nutrition & Soil

View full text Add to dashboard Cite

The direct measurement of gaseous N losses through denitrification requires a complicated methodology. Mostly alternative approaches are used to estimate these losses for a particular arable or grassland site. Evaluation of the literature shows that N losses as a result of denitrification ‐ determined by the 15N balance, by direct mass spectrometry of N2 + N2O and by the acetylene inhibition method, respectively ‐ may reach about 10 % of the fertilizer input on agriculturally used sites without irrigation or organic manure addition. The estimation of denitrification losses can be improved by considering site‐specific parameters affecting denitrification like total carbon content, pH, time of fertilizer application as well as soil temperature and soil moisture conditions.

show abstract