Nitrogen Rate Assessment for Greenhouse Gas Emission Mitigation and Quality Maintenance in Sustainable Turf Management

Turfgrass systems hold significant climate change mitigation value, but their management often negates the beneficial effects due to the intense adoption of external inputs. The research objective in this paper was to assess the nitrogen fertilization rate able to maintain the ideal esthetic charact...

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Bibliographic Details
Published in:Agriculture (Basel) 2024-08, Vol.14 (8), p.1244
Main Authors: Verdi, Leonardo, Caturegli, Lisa, Magni, Simone, Volterrani, Marco, Dalla Marta, Anna, Orlandini, Simone, Baldi, Ada
Format: Article
Language:English
Subjects:
Agriculture
Air pollution
Carbon dioxide
Climate change
Climate change mitigation
Emissions
Emissions control
Environmental impact
Environmental management
Environmental monitoring
Experiments
Fertilization
Fertilizers
Gas analyzers
Global warming
Global Warming Potential
Greenhouse effect
Greenhouse gases
Land use
Methane
Nitrogen
Nitrous oxide
Quality assessment
Quality control
Sprinkler systems
Turf
Turfgrasses
Urban areas
Vegetation
Zoysia matrella
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Summary:Turfgrass systems hold significant climate change mitigation value, but their management often negates the beneficial effects due to the intense adoption of external inputs. The research objective in this paper was to assess the nitrogen fertilization rate able to maintain the ideal esthetic characteristics of Zoysia turfgrass, reducing the environmental impacts associated with greenhouse gas (GHG) emissions. A two-year open field experiment was conducted. Nitrogen was added to the soil at six rates (0, 50, 100, 150, 200, and 250 kg ha−1). The GHG emissions were monitored using a portable gas analyzer and the static chamber methodology. Cumulative environmental impacts were calculated from the inclusion of CO2, CH4, and, N2O using the Global Warming Potential (GWP). The quality assessment of the turf was assessed through a visual and instrumental approach. Higher CO2 and N2O fluxes were linked to high nitrogen rates, ranging from 83.55 to 87.50 and from 0.046 to 0.047 g N-N2O ha−1 day−1 for 200 and 250 kg N ha−1, respectively. CH4 emissions were not correlated to nitrogen rates. Higher GWP impacts were linked to high N rate treatments. A rate of 100 kg N ha−1 is recommended as the best strategy to reduce GHG emissions while maintaining high turf quality.
ISSN:2077-0472
2077-0472
DOI:10.3390/agriculture14081244