Method for measuring of N2O emissions from fertilized soil after the using of fertilizer spreader
2012
Šima, Tomáš (Slovak University of Agriculture in Nitra, Nitra (Slovak Republic). Faculty of Engineering, Department of Machines and Production Systems) | Nozdrovický, Ladislav (Slovak University of Agriculture in Nitra, Nitra (Slovak Republic). Faculty of Engineering, Department of Machines and Production Systems) | Krištof, Koloman (Slovak University of Agriculture in Nitra, Nitra (Slovak Republic). Faculty of Engineering, Department of Machines and Production Systems) | Dubeňová, Monika (Slovak University of Agriculture in Nitra, Nitra (Slovak Republic). Faculty of Engineering, Department of Production Engineering) | Krupička, Josef (Czech University of Life Sciences, Prague (Czech Republic). Faculty of Engineering, Department of Agricultural Machines) | Králik, Stanislav (Slovak University of Agriculture in Nitra, Nitra (Slovak Republic). Faculty of Engineering, Department of Machines and Production Systems)
The use of fertilizer spreaders is accompanied by a different quality of work these machines, which can cause local overdosing of the fertilizers. Consequently, there may occur the increased formation of nitrous oxide (N2O) emissions from the soil to the atmosphere. The aim of the paper was to compare the field and the laboratory method, which can be used for measuring of the N2O emissions released from the soil to the atmosphere. For the purpose of emissions measuring the INNOVA devices with measurement system based on the photo-acoustic infrared detection method was used. Experiment was conducted 10 days after the field was fertilized. During experiment were used the VICON RS-L fertilizer spreader and the Calk Ammonium Nitrate fertilizer. There were found statistically significant differences between the size of the application rate and concentration of the N2O emissions released from soil to the atmosphere. No statistically significant differences were found in comparison of this two methods and this fact indicate the possibility to replace the field method by the laboratory method.
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