Tag Archives: crop residues

103-110 T. Šima,, L. Nozdrovický, M. Dubeňová, K. Krištof and J. Krupička
Effect of crop residues on nitrous oxide flux in the controlled traffic farming system during the soil tillage by LEMKEN Rubin 9 disc harrow
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Effect of crop residues on nitrous oxide flux in the controlled traffic farming system during the soil tillage by LEMKEN Rubin 9 disc harrow

T. Šima¹,*, L. Nozdrovický², M. Dubeňová³, K. Krištof⁴ and J. Krupička⁵

¹,²,⁴Slovak University of Agriculture in Nitra, Faculty of Engineering,
Department of Machines and Production Systems, Tr. A. Hlinku 2, 94976 Nitra,
Slovak Republic; *Correspondence: tomasko.sima@gmail.com
³Slovak University of Agriculture in Nitra, Faculty of Engineering, Department
of Production Engineering, Tr. A. Hlinku 2, 94976 Nitra, Slovak Republic
⁵Czech University of Life Sciences Prague, Faculty of Engineering, Department
of Agricultural Machines, Kamýcká129, 16521 Prague, Czech Republic

Abstract:

Nitrous oxide (N2O) is one of the most important greenhouse gases. Agriculture, especially soil tillage and the use of fertilisers, significantly contributes to N2O emissions from soil into the atmosphere. The aim of the paper was the comparison of the amount of nitrous oxide emissions released from the soil into the atmosphere depending on crop residues in conditions of a controlled traffic farming (CTF) system. Monitoring points were selected in parts of a field with/ without crop residues and in trafficked and non-trafficked areas. There were realised three variants of the experiment: before soil tillage, right after soil tillage and seven days after soil tillage. Soil tillage was carried out by a LEMKEN Rubin 9 disc harrow with a JOHN DEERE 8230 tractor on the loamy soil after the harvest of winter wheat. The used laboratory method of measuring N2O emissions released from the soil into the atmosphere consists of collecting soil samples from the field and their subsequent analysis in the laboratory. There were used INNOVA devices which consist of a photo-acoustic field gas monitor INNOVA 1412 based on the infrared photo-acoustic detection method, a multipoint sampler INNOVA 1309 used for gas sampling transport to the gas analyser INNOVA 1412, and a notebook with operation software used for the control and setup of the analysis. There was discovered an effect of crop residues and soil compaction on the nitrous oxide flux.

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