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Experimental investigation of thermo-physical properties of soil using solarisation technology

Gatea Al-Shammary, Ahmed Abed, Kouzani, Abbas, Kaynak, Akif, Khoo, Sui Yang and Norton, Michael 2017, Experimental investigation of thermo-physical properties of soil using solarisation technology, American journal of applied sciences, vol. 14, no. 7, pp. 649-661, doi: 10.3844/ajassp.649.661.

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Title Experimental investigation of thermo-physical properties of soil using solarisation technology
Author(s) Gatea Al-Shammary, Ahmed Abed
Kouzani, AbbasORCID iD for Kouzani, Abbas orcid.org/0000-0002-6292-1214
Kaynak, AkifORCID iD for Kaynak, Akif orcid.org/0000-0002-6679-657X
Khoo, Sui Yang
Norton, Michael
Journal name American journal of applied sciences
Volume number 14
Issue number 7
Start page 649
End page 661
Total pages 13
Publisher Science Publications
Place of publication [Vails Gate, N.Y.]
Publication date 2017-07-17
ISSN 1546-9239
1554-3641
Keyword(s) Soil Tillage Depth
Number of Plastic Film
Organic Fertilizer
Soil Bulk Density
Soil Thermal Diffusivity
Summary Soil Thermo-Physical Properties (TPP) depend on heat transfer in the soil. This paper presents a study on different soil solarisation technologies influenced by soil TPP. This study evaluates three factors: The tillage depth for soil at three levels (15, 25 and 45 cm), the number of plastic film at three levels (single, double and without plastic film) and three cases of fertilizers (chemical fertilizer, organic fertilizer and without fertilizer). The parameters explored in this study include soil bulk density (Mg/cm3), soil porosity (%), soil volumetric moisture content (cm3/cm3) and soil thermal diffusivity (m2/sec). Data management and analysis were performed using SAS 9.1 statistical software and the spilt-plot under Randomized Complete Block Design (RCBD). The results show that soil Tillage Depth (TD) strongly influences TPP, as well as a significant effect on soil bulk density (ρb), porosity (Φ), volumetric moisture content (θ) and thermal diffusivity (D). The results also reveal that a tillage depth of 15 cm produces lower values of ρb, θ and D (1.25 Mg/cm3, 0.131 cm3/cm3 and 1.24×10-6 m2/sec, respectively) and a higher value of Φ (52.78%). In addition, the finding indicates that ρb is increased by increasing TD. There was a significant positive correlation between the number of plastic film and parameters studied. The soil double plastic film produced lower values of ρb and D for soil (1.253 Mg/cm3, 7.76×10-7m2/sec). However, it recorded higher values for Φ and θ for soil (52.70% and 0.231 cm3/cm3, respectively). Furthermore, the current study shows significant differences between the types of fertilizers on ρb. Organic Fertilizer (OF) obtained a lower value of ρb (1.2 Mg/m3), compared with chemical fertilizer and without fertilizer (1.28 and 1.31 Mg/m3, respectively). In contrast, contrary to expectations, this study did not find significant differences between the types of fertilizer on D and θ for soil. A positive correlation was found in the interaction between the studied factors in the parameters. Furthermore, D increased with increasing soil bulk density (pb) and tillage depth.
Language eng
DOI 10.3844/ajassp.649.661
Field of Research MD Multidisciplinary
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2017, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30101171

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.