Comparing closed chamber measures of ammonia volatilization from kentucky bluegrass fertilized by granular urea

Research output: Contribution to journalArticle

Abstract

Easy handling and low unit N cost make prilled urea (46-0-0) a popular fertilizer. While incomplete recovery of granular urea applications by turfgrass is documented, practical guidance for small-plot field assessment of ammonia (NH3) volatilization remains limited. Our objectives were to (i) develop a method for field-implementation of closed flux/dynamic chambers to measure ammonia emission over a 3-day period following granular urea application to turfgrass, and (ii) infer the significance of said measures to levels arising from simultaneous static-chamber measures. A Kentucky bluegrass (Poa pratensis L. ‘Midnight’) lawn was treated with granular urea-N at a rate of 0 or 43 kg·ha1 (38 lb/A) twice in both 2014 and 2015. Flux chamber measures of mean ammonia volatilization from urea-N fertilizer applied 3 days previous exceeded simultaneous static chamber measures by a factor of 17. Relative to static, the closed dynamic/flux chamber system described affords a more precise and efficient method for measuring ammonia volatilization from small field plots. Furthermore, over a 3-day period of dry conditions and ambient temperatures fluctuating between 10 and 31 C (50 and 88 F), as much as 23.1% of a granular urea application broadcast over a Kentucky bluegrass lawn can be volatilized as ammonia.

Original languageEnglish (US)
Pages (from-to)85-91
Number of pages7
JournalJournal of Environmental Horticulture
Volume36
Issue number3
DOIs
StatePublished - Sep 1 2018

Fingerprint

Poa pratensis
volatilization
urea
ammonia
flux chamber
turf grasses
fertilizer
urea fertilizers
ambient temperature
nitrogen fertilizers
fertilizers
methodology
cost
temperature

All Science Journal Classification (ASJC) codes

  • Horticulture
  • Environmental Science (miscellaneous)

Cite this

@article{2bb276cd6ba84bbc9b9527fe34c5b43e,
title = "Comparing closed chamber measures of ammonia volatilization from kentucky bluegrass fertilized by granular urea",
abstract = "Easy handling and low unit N cost make prilled urea (46-0-0) a popular fertilizer. While incomplete recovery of granular urea applications by turfgrass is documented, practical guidance for small-plot field assessment of ammonia (NH3) volatilization remains limited. Our objectives were to (i) develop a method for field-implementation of closed flux/dynamic chambers to measure ammonia emission over a 3-day period following granular urea application to turfgrass, and (ii) infer the significance of said measures to levels arising from simultaneous static-chamber measures. A Kentucky bluegrass (Poa pratensis L. ‘Midnight’) lawn was treated with granular urea-N at a rate of 0 or 43 kg·ha1 (38 lb/A) twice in both 2014 and 2015. Flux chamber measures of mean ammonia volatilization from urea-N fertilizer applied 3 days previous exceeded simultaneous static chamber measures by a factor of 17. Relative to static, the closed dynamic/flux chamber system described affords a more precise and efficient method for measuring ammonia volatilization from small field plots. Furthermore, over a 3-day period of dry conditions and ambient temperatures fluctuating between 10 and 31 C (50 and 88 F), as much as 23.1{\%} of a granular urea application broadcast over a Kentucky bluegrass lawn can be volatilized as ammonia.",
author = "Schlossberg, {Maxim J.} and McGraw, {Benjamin A.} and Hivner, {Kyle R.}",
year = "2018",
month = "9",
day = "1",
doi = "10.24266/0738-2898-36.3.85",
language = "English (US)",
volume = "36",
pages = "85--91",
journal = "Journal of Environmental Horticulture",
issn = "0738-2898",
publisher = "Horticultural Research Institute",
number = "3",

}

TY - JOUR

T1 - Comparing closed chamber measures of ammonia volatilization from kentucky bluegrass fertilized by granular urea

AU - Schlossberg, Maxim J.

AU - McGraw, Benjamin A.

AU - Hivner, Kyle R.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - Easy handling and low unit N cost make prilled urea (46-0-0) a popular fertilizer. While incomplete recovery of granular urea applications by turfgrass is documented, practical guidance for small-plot field assessment of ammonia (NH3) volatilization remains limited. Our objectives were to (i) develop a method for field-implementation of closed flux/dynamic chambers to measure ammonia emission over a 3-day period following granular urea application to turfgrass, and (ii) infer the significance of said measures to levels arising from simultaneous static-chamber measures. A Kentucky bluegrass (Poa pratensis L. ‘Midnight’) lawn was treated with granular urea-N at a rate of 0 or 43 kg·ha1 (38 lb/A) twice in both 2014 and 2015. Flux chamber measures of mean ammonia volatilization from urea-N fertilizer applied 3 days previous exceeded simultaneous static chamber measures by a factor of 17. Relative to static, the closed dynamic/flux chamber system described affords a more precise and efficient method for measuring ammonia volatilization from small field plots. Furthermore, over a 3-day period of dry conditions and ambient temperatures fluctuating between 10 and 31 C (50 and 88 F), as much as 23.1% of a granular urea application broadcast over a Kentucky bluegrass lawn can be volatilized as ammonia.

AB - Easy handling and low unit N cost make prilled urea (46-0-0) a popular fertilizer. While incomplete recovery of granular urea applications by turfgrass is documented, practical guidance for small-plot field assessment of ammonia (NH3) volatilization remains limited. Our objectives were to (i) develop a method for field-implementation of closed flux/dynamic chambers to measure ammonia emission over a 3-day period following granular urea application to turfgrass, and (ii) infer the significance of said measures to levels arising from simultaneous static-chamber measures. A Kentucky bluegrass (Poa pratensis L. ‘Midnight’) lawn was treated with granular urea-N at a rate of 0 or 43 kg·ha1 (38 lb/A) twice in both 2014 and 2015. Flux chamber measures of mean ammonia volatilization from urea-N fertilizer applied 3 days previous exceeded simultaneous static chamber measures by a factor of 17. Relative to static, the closed dynamic/flux chamber system described affords a more precise and efficient method for measuring ammonia volatilization from small field plots. Furthermore, over a 3-day period of dry conditions and ambient temperatures fluctuating between 10 and 31 C (50 and 88 F), as much as 23.1% of a granular urea application broadcast over a Kentucky bluegrass lawn can be volatilized as ammonia.

UR - http://www.scopus.com/inward/record.url?scp=85055252935&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85055252935&partnerID=8YFLogxK

U2 - 10.24266/0738-2898-36.3.85

DO - 10.24266/0738-2898-36.3.85

M3 - Article

VL - 36

SP - 85

EP - 91

JO - Journal of Environmental Horticulture

JF - Journal of Environmental Horticulture

SN - 0738-2898

IS - 3

ER -