Dynamics of Temperature Variation in Soil under Fallow Tillage at Different Depths

Volodymyr Bulgakov, Simone Pascuzzi, Valerii Adamchuk, Jaroslav Gadzalo, Volodymyr Nadykto, Jüri Olt, Janusz Nowak and Viktor Kaminskiy
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Volodymyr Bulgakov: Department of Mechanics, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, 15 Heroyiv Oborony Str., 03041 Kyiv, Ukraine
Simone Pascuzzi: Department of Agricultural and Environmental Science, University of Bari Aldo Moro, Via Amendola 11 165/A, 70126 Bari, Italy
Valerii Adamchuk: Institute of Mechanics and Automation of Agricultural Production of the National Academy of Agrarian Sciences of Ukraine, 11 Vokzalna Str., Glevakha stl, Vasylkivsky Dist., 08631 Kyiv, Ukraine
Jaroslav Gadzalo: National Academy of Agrarian Sciences of Ukraine, 9 Mykhailo Omelyanovych-Pavlenko Str., 01010 Kyiv, Ukraine
Volodymyr Nadykto: Department of Machine Use in Agriculture, Mechanical Engineering Faculty, Dmytro Motornyi Tavria State Agrotechnological University, 18B Khmelnytsky Ave., 72310 Melitopol, Ukraine
Jüri Olt: Institute of Forestry and Engineering, Estonian University of Life Sciences, 56 Kreutzwaldi Str., 51006 Tartu, Estonia
Janusz Nowak: Department of Operation of Machines and Management of Production Processes, University of Life Sciences in Lublin, 13 Akademicka Str., 20-950 Lublin, Poland
Viktor Kaminskiy: National Science Center, Institute of Agriculture of NAAS of Ukraine, 2-b Mashynobudivnykiv Str., Chabany vil., 08162 Kyiv, Ukraine

Agriculture, 2022, vol. 12, issue 4, 1-12

Abstract: One of the important processes taking place during soil surface tillage is the variation of the soil temperature at different depths. The paper presents the results of research into the dynamics of soil temperature variation in terms of such parameters of the soil as its thermal diffusivity and temperature oscillation frequency. It has been established that the temperature oscillation amplitude decreases when the depth increases, following the logarithmic law. In this variation, the temperature difference between the 0–5 cm layer and the adjacent 5–10 cm layer has the greatest value. This circumstance is a favorable factor for the fallow tillage technology, where the soil is regularly cultivated to a depth of no more than 5 cm, in case of a moisture deficit. A decrease in the frequency of the soil temperature oscillations can result in the reduced level of its heating in different layers. In terms of qualitative changes, the reduction in soil thermal diffusivity results in the amplitude of the soil temperature oscillations being lowered and at the same time the maximum of these oscillations being shifted towards a delay.

Keywords: soil; amplitude; fallow; thermal diffusivity; vibration frequency (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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