TAILIEUCHUNG - Effects of wheel traffic and farmyard manure applications on soil CO2 emission and soil oxygen content
The increase in manure amounts led to an increase in CO2 emission and soil moisture content. The effects on soil O2 content were observed only during 2015. Maximum oxygen values were obtained in the plots where compaction was not applied. In addition, surface manure application caused more soil O2 content compared to subsurface application. | Turkish Journal of Agriculture and Forestry Turk J Agric For (2018) 42: 288-297 © TÜBİTAK doi: Research Article Effects of wheel traffic and farmyard manure applications on soil CO2 emission and soil oxygen content 1, 1 2 Sefa ALTIKAT * , H. Kaan KÜÇÜKERDEM , Aysun ALTIKAT Department of Biosystem Engineering, Faculty of Agriculture, Iğdır University, Iğdır, Turkey 2 Department of Environmental Engineering, Faculty of Engineering, Iğdır University, Iğdır, Turkey 1 Received: Accepted/Published Online: Final Version: Abstract: This 2-year field study investigated the effects of different wheel traffic passes, manure amounts, and manure application methods on soil temperature, soil moisture, CO2 emission, and soil O2 content. To achieve this purpose, three different wheel traffic applications (no traffic, one pass, and two passes) were used. In the experiments, two different methods of manure applications (surface and subsurface) and three different farmyard manure amounts were used with a control plot (N0), 40 Mg ha–1 (N40), and 80 Mg ha–1 (N80). Manure was applied in both years of the experiment in the first week of April. For the subsurface application, the manure was mixed in at approximately 10 cm of soil depth with a rotary tiller. According to the results, soil temperature, soil moisture, penetration resistance, and bulk density increased with increasing wheel traffic except CO2 emission for 2014 and 2015. CO2 emission values decreased with traffic. Subsurface manure application caused more CO2 emission compared to surface application. The increase in manure amounts led to an increase in CO2 emission and soil moisture content. The effects on soil O2 content were observed only during 2015. Maximum oxygen values were obtained in the plots where compaction was not applied. In addition, surface manure application caused more soil O2 content compared to .
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