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Title: INFLUENCE OF GROWN CULTURE ON N2O FORMATION
INFLUENCE OF GROWN CULTURE ON N2O FORMATION

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Sindija Liepa; Kristaps Siltumens; Jovita Pilecka-Ulcugaceva; Inga Grinfelde; Dace Butenaite
10.5593/sgem2022V/4.2/s19.40
10.5593/sgem2022V/4.2
1314-2704
978-619-7603-50-7
English
22
4.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Air Pollution and Climate Change
Crop cultivation is beneficial for reducing soil erosion and nutrient loss, but there is conflicting information on how crop cultivation affects emissions of nitrogen dioxide (N2O), a potent greenhouse gas. Judicious selection of the cultivated crop in a plant succession is considered an effective approach to maintaining crop productivity. In this paper, we investigated the effects of cultivated crops on soil N2O emissions. Eight crops were used in this study: barley, buckwheat, clover, oats, potatoes, spring wheat, winter wheat and canola. Samples were collected in 32 experimental plots as well as a control plot. The samples are thus weighed in 3 l buckets, each 1.8 kg in total. Two samples were weighed from each plot to allow for different moisture regimes. Moistening is designed for wet aerobic and wet anaerobic soil conditions. Information on changes in soil weight after soil wetting was also collected. Measurements of N2O isotopes were performed using the Picarro G5131-i equipment in laboratory conditions. The obtained data were collected and analyzed. It was concluded that not all the obtained differences in N2O isotope data dispersion can be directly related to the cultivated crop, the physical properties of the soil, the use of fertilizers and the influence of the microorganism population cannot be excluded. The maximum value of ?15NSP value is 18.58 and the minimum value is -53.41. On the other hand, the maximum value of ?15Nbulk values is 26.76, and the minimum value is -56.97. In the conclusions, we get that both nitrification and denitrification dominate among cultures.
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[6] Butenaite D., Grinfelde I., Pilecka-Ulcugaceva J., Vincevica-Gaile Z., Liepa S.. The nitrous oxide isotope measurements for soil samples under laboratory / 21st International multidisciplinary scientific GeoConference SGEM 2021 : proceedings, Albena, Bulgaria, 2021 / Bulgarian Academy of Sciences Ecology, Economics, Education and legislation. Sofia, 2021 Issue 5.1 : Ecology and environmental protection. Environmental economics. Education and accreditation in geosciences. Environmental legislation, multilateralrelations and funding opportunities, 941.-948.lpp. ISBN 9786197603286. ISSN 1314-2704.
conference
https://doi.org/10.5593/sgem2022V/4.2/s19.40
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 06-08 December, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
319-326
06-08 December, 2022
website
8857
N2O isotopes, crops, GHG mitigation measures, Picarro G5131-i