Changes in soil temperature and water content under mobile soil steam disinfection
Keywords:
soil steam disinfection, steam capillary diameter, steam capillary vent, soil temperature, soil water contentAbstract
The soil steam injection method is one of the most effective disinfection methods, and the determination of the steam pipe structure parameters is very important. The steam capillary diameter (SCD) affects the steam flow field in each pipe, which in turn affects the steam changes in the soil flow range and soil temperature (ST). Larger SCD would make lower ST in clay loam, silt loam, and sandy clay loam. The effectiveness of an SCD of 10 mm was verified by a mobile disinfection test at walking speeds of 10 cm/min and 30 cm/min under soil water content (SWC) of 15% and 35%, respectively. The results showed that when the walking speed was 10 cm/min, the initial SWC was proportional to the ST. However, when the walking speed was 30 cm/min, the law was exactly the opposite; that is, the initial water content is inversely proportional to the ST. The research can provide a theoretical research foundation for increasing soil temperature for efficient soil steam disinfection. Keywords: soil steam disinfection, steam capillary diameter, steam capillary vent, soil temperature, soil water content DOI: 10.25165/j.ijabe.20211403.5026 Citation: Yang Z J, Wang X C, Ameen M. Changes in soil temperature and water content under mobile soil steam disinfection. Int J Agric & Biol Eng, 2021; 14(3): 140–147.References
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[2] Cao A C, Zheng J Q, Guo M X, Wang Q X, Li Y. Soil disinfection technology and key points. J. of Vegetables, 2011; 4: 41–44. (in Chinese)
[3] Cao A C, Guo M X, Wang Q X, Li Y, Yan D D. The soil disinfection technology progress. China Vegatables, 2010; 21: 17–22. (in Chinese)
[4] Yang Y T, Hu H, Zhao Q L, Guo D Q, Gao Q S, Guan C S. Research progress of soil physical disinfection equipment. Agricultural Engineering, 2015; 5(S1): 43–48. (in Chinese)
[5] Nishimura A, Asai M, Shibuya T, Kurokawa S, Nakamura H. A steaming method for killing weed seeds produced in the current year under untilled conditions. Crop Protection, 2015; 71: 125–131.
[6] Gay P, Piccarolo P, Aimonino D R, Tortia C. A high efficiency steam soil disinfestation system, part I: physical background and steam supply optimisation. Biosystems Engineering, 2010; 107(2): 74–85.
[7] Peruzzi A, Raffaelli M, Ginanni M, Fontanelli M, Frasconi C. An innovative self-propelled machine for soil disinfection using steam and chemicals in an exothermic reaction. Biosystems Engineering, 2011; 110(4): 434–442.
[8] Khan K S, Müller T, Dyckmans J, Joergensen R G. Development of ergosterol, microbial biomass C, N, and P after steaming as a result of sucrose addition, and Sinapis alba cultivation. Biology & Fertility of Soils, 2010; 46(4): 323–331.
[9] Fennimore S A, Martin F N, Miller T C, Broome J C, Dorn N, Greene I. Evaluation of a mobile steam applicator for soil disinfestation in California strawberry. Hortscience, 2014; 49(12): 1542–1549.
[10] Roux-Michollet D, Dudal Y, Jocteur-Monrozier L, Czarnes S. Steam treatment of surface soil: how does it affect water-soluble organic matter, C mineralization, and bacterial community composition. Biology & Fertility of Soils, 2010; 46(6): 607–616.
[11] Hoyos E P, Gálvez R B. Influence of grafting and stem disinfection methods on the yield of greenhouse-grown Spanish cucumbers. Acta Horticulturae, 2012; 927: 455–460.
[12] Egli M, Mirabella A, Kägi B, Tomasone R, Colorio G. Influence of steam sterilisation on soil chemical characteristics, trace metals and clay mineralogy. Geoderma, 2006; 131(1-2): 123–142.
[13] Gay P, Piccarolo P, Aimonino D R, Tortia C. A high efficiency steam soil disinfestation system, part II: Design and testing. Biosystems Engineering. Biosystems Engineering, 2010; 107(3): 194-201.
[14] Raffaelli M, Martelloni L, Frasconi C, Fontanelli M, Carlesi S, Peruzzi A. A prototype band-steaming machine: Design and field application. Biosystems Engineering, 2016; 144: 61–71.
[15] Lars E, Martinheide J, Susanne E. Effects of band-steaming on microbial activity and abundance in organic farming soil. Agriculture Ecosystems & Environment, 2010; 137(3): 223–230.
[16] Gilbert C, Fennimore S A, Subbarao K, Hanson B, Rainbolt C, Goodhue R E, et al. Systems to disinfest soil with heat for strawberry and flower production. International Research Conference on Methyl Bromide Alternatives and Emissions Reductions, San Diego, California, USA, October, 2009; Paper No. 15.
[17] Lawrence W J C. Soil sterilization. London: Unwin Brothers Limited, 1956.
[18] Philip J R, De Vries D A. Moisture movement in porous materials under temperature gradients. Eos Transactions American Geophysical Union, 1957; 38(2): 222–232.
[19] Chen J L, Lü H X, Shi X, Zhu D L, Wang W E. Numerical simulation and experimental study on hydrodynamic characteristics of T-type pipes. Transactions of the CSAE, 2012; 28(5): 73–77. (in Chinese)
[20] Zhao Y C, Kong D G, Huo J W, Wang Y C, He Y, Zhang Y. Simulation and experiment of air-suction collecting and conveying equipment for small berry. Transactions of the CSAE, 2016; 32(17): 32–39. (in Chinese)
[21] Gao X J, Zhou J H, Lai Q H. Design and experiment of pneumatic cylinder precision seed-metering device for panax notoginseng. Transactions of the CSAE, 2016; 32(2): 20–28. (in Chinese)
[22] Cheng X P, Lu C Y, Meng Z J, Yu J Y. Design and parameter optimization on wheat precision seed meter with combination of pneumatic and type hole. Transactions of the CSAE, 2018; 34(24): 1–9. (in Chinese)
[23] Li X Y, Zhu L, Wang C Y, Wang J H. Optimization of thermally enhanced SVE process for remediation of hydrocarbon contaminated soil by response surface methodology. Chinese Journal of Environmental Engineering, 2018; 12(3): 914–922. (in Chinese)
[24] Yang J, Song H T, Huang Z D, Liu J Wang Z W. Effect of draft tube depth on performance of axial flow fixed-blade turbine. Transactions of the CSAE, 2016; 47(2): 45–50. (in Chinese)
[25] Lin P Y, Hanratty T J. Effect of pipe diameter on flow patterns for air-water flow in horizontal pipes. International Journal of Multiphase Flow, 1987; 13(4): 549–563.
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Published
2021-06-11
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Yang, Z., Wang, X., & Ameen, M. (2021). Changes in soil temperature and water content under mobile soil steam disinfection. International Journal of Agricultural and Biological Engineering, 14(3), 140–147. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/5026
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Natural Resources and Environmental Systems
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