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Title: INFLUENCE OF COATED UREA APPLICATION ON SOIL ORGANIC CARBON SEQUESTRATION
INFLUENCE OF COATED UREA APPLICATION ON SOIL ORGANIC CARBON SEQUESTRATION

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Nicoleta Vicar; Adina Berbecea; Alina Lato; Liliana Brei; Isidora Radulov
10.5593/sgem2023V/4.2/s19.31
10.5593/sgem2023v/4.2
1314-2704
978-619-7603-65-1
English
23
4.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Air Pollution and Climate Change
The application of nitrogen fertilizers in the form of urea tends to increase acidity, especially on low pH soils, and as a result can lead to increased aluminum toxicity, which can adversely affect not only soil properties such as microbial activity, but also productivity. Application of different types of urea with inhibitors to reduce nitrogen losses would result in a different carbon response to fertilizers applications for the same soil type because of differences in soil micro-environment, including microbial biomass and activity. The aim of the study was to determine the influence of applying different forms of urea on the content of total nitrogen, organic carbon, phosphorus and assimilable potassium. The experiment was set up in the Western Plain of Banat, on soil with weak acid pH and medium nitrogen supply. The research was carried out on autumn oilseed rape crops, in the following fertilization variants and application rates: UREE 46% total N; UREE Z 45.7% N total with nitrification inhibitor up to 80%; UREE ZL 45.7% N total with urease inhibitor up to 50%; UREE NDP 45.7% N total with urease inhibitor up to 50% and nitrification inhibitor up to 80%; UREE DMPP 45.7% N total with volatilization reduction up to 95%. For these crops, 300 kg/ha 16:16:16 complex fertilizer and 120 kg/ha UREE were applied, from the described above varieties. There were no significant differences in soil pH and total nitrogen, available potassium increased significantly, and available phosphorus decreased slightly in all treatments. Application of stabilized and coated urea fertilizers resulted in a moderate improvement in soil SOC.
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This research paper is supported by the project Consolidation of the research - innovation ecosystem within USVT code CNFIS-FDI_2023-F-0343
conference
https://doi.org/10.5593/sgem2023V/4.2/s19.31
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 28-30 November, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian 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; Russian Acad Arts; Turkish Acad Sci.
259-266
28-30 November, 2023
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urea with inhibitors, total nitrogen, organic carbon, phosphorus and assimilable potassium.