Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea.
Although N is beneficial and essential for life, it is also a common atmospheric pollutant as nitrous oxide (N2O) and ammonia (NH3)-contributed largely from N fertilization. Polymer-coated urea (PCU) fertilizer is a promising controlled release fertilizer that provides improved N-release timing. Gla...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2018-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC6143244?pdf=render |
| _version_ | 1818028866284814336 |
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| author | Joshua J LeMonte Von D Jolley Tobin M Story Bryan G Hopkins |
| author_facet | Joshua J LeMonte Von D Jolley Tobin M Story Bryan G Hopkins |
| author_sort | Joshua J LeMonte |
| collection | DOAJ |
| description | Although N is beneficial and essential for life, it is also a common atmospheric pollutant as nitrous oxide (N2O) and ammonia (NH3)-contributed largely from N fertilization. Polymer-coated urea (PCU) fertilizer is a promising controlled release fertilizer that provides improved N-release timing. Glasshouse studies were conducted to compare N2O and NH3 emissions from PCU and uncoated urea to an untreated control utilizing a non-static, non-flow-through chamber in conjunction with photoacoustic infrared spectroscopy (PAIRS) for gas collection and analysis. Three short-term 20-Day Studies with sand, sandy loam, and loam soils and a full-term 45-Day Study with loam soil were completed. Volatilization of NH3 was reduced by 72% and 22% in the sandy loam and loam soils, respectively, in two of the short-term studies and by 14% in the loam in the full-term study. Evolution of N2O was reduced by 42% and 63% in the sandy loam and loam soils of the short-term studies and by 99% in the loam soil of the full-term study. No differences were observed in the sand soil. Overall, PCU decreased gaseous losses of N following fertilization while providing a steady supply of N to the plant. Higher temporal resolution was observed with the PAIRS instrumentation as compared to what is typically reported and, as such, we recommend PAIRS analysis as a viable method for studying N gas emissions. |
| first_indexed | 2024-12-10T05:10:36Z |
| format | Article |
| id | doaj.art-5000a925a1e9482988830118fc97c62c |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-10T05:10:36Z |
| publishDate | 2018-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-5000a925a1e9482988830118fc97c62c2022-12-22T02:01:06ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01139e020409010.1371/journal.pone.0204090Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea.Joshua J LeMonteVon D JolleyTobin M StoryBryan G HopkinsAlthough N is beneficial and essential for life, it is also a common atmospheric pollutant as nitrous oxide (N2O) and ammonia (NH3)-contributed largely from N fertilization. Polymer-coated urea (PCU) fertilizer is a promising controlled release fertilizer that provides improved N-release timing. Glasshouse studies were conducted to compare N2O and NH3 emissions from PCU and uncoated urea to an untreated control utilizing a non-static, non-flow-through chamber in conjunction with photoacoustic infrared spectroscopy (PAIRS) for gas collection and analysis. Three short-term 20-Day Studies with sand, sandy loam, and loam soils and a full-term 45-Day Study with loam soil were completed. Volatilization of NH3 was reduced by 72% and 22% in the sandy loam and loam soils, respectively, in two of the short-term studies and by 14% in the loam in the full-term study. Evolution of N2O was reduced by 42% and 63% in the sandy loam and loam soils of the short-term studies and by 99% in the loam soil of the full-term study. No differences were observed in the sand soil. Overall, PCU decreased gaseous losses of N following fertilization while providing a steady supply of N to the plant. Higher temporal resolution was observed with the PAIRS instrumentation as compared to what is typically reported and, as such, we recommend PAIRS analysis as a viable method for studying N gas emissions.http://europepmc.org/articles/PMC6143244?pdf=render |
| spellingShingle | Joshua J LeMonte Von D Jolley Tobin M Story Bryan G Hopkins Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea. PLoS ONE |
| title | Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea. |
| title_full | Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea. |
| title_fullStr | Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea. |
| title_full_unstemmed | Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea. |
| title_short | Assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy: Polymer coated urea. |
| title_sort | assessing atmospheric nitrogen losses with photoacoustic infrared spectroscopy polymer coated urea |
| url | http://europepmc.org/articles/PMC6143244?pdf=render |
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