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- W3178105722 abstract "<p>This study focuses on the soil N<sub>2</sub>O emission of arable fields. We initially set up several soil column experiments in laboratory and based on these findings we started field measurements in a long term tillage experiment at J&#243;zsefmajor Experimental and Training Farm, Hungary. For the column experiments we collected undisturbed soil columns (d=10 cm, h=10 cm) from mouldboard ploughing (P) and no-till (NT) treatments. &#160;We investigated the effect of different fertilizer doses (40, 80, 160, 240 kg h<sup>-1</sup> N), soil water content (SWC) and different tillage methods on soil N<sub>2</sub>O emission.</p><p>We found a nonlinear response of N<sub>2</sub>O emission on the applied fertilizer doses. The moderately fertilized (80-160 kg ha<sup>-1</sup> N) samples had the highest N<sub>2</sub>O emissions. Samples from NT had higher N<sub>2</sub>O emission than samples from P. We found better correlation between N<sub>2</sub>O emission and SWC in NT (R<sup>2</sup> is between 0.47 and 0.62) than in the P (R<sup>2</sup> is between 0.01 and 0.35). &#160;The N<sub>2</sub>O emission values showed high spatial variability. The field measurements showed similar findings of N<sub>2</sub>O emission compared to the column experiments. In 2020 we intend to continue the field measurements and include further investigations of governing factors of soil N<sub>2</sub>O emission.</p>" @default.
- W3178105722 created "2021-07-19" @default.
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- W3178105722 date "2020-03-23" @default.
- W3178105722 modified "2023-10-01" @default.
- W3178105722 title "N2O emission and governing factors on arable fields" @default.
- W3178105722 doi "https://doi.org/10.5194/egusphere-egu2020-388" @default.
- W3178105722 hasPublicationYear "2020" @default.
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