Evaluating Soil Tillage Practices Using X-Ray Computed Tomography and Conventional Laboratory Methods

dc.contributor.author Ambert-Sanchez, Maria
dc.contributor.author Mickelson, Steven
dc.contributor.author Ahmed, Syed
dc.contributor.author Gray, Joseph
dc.contributor.author Mickelson, Steven
dc.contributor.author Webber, David
dc.contributor.department Mechanical Engineering
dc.contributor.department Center for Nondestructive Evaluation
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-17T17:16:45.000
dc.date.accessioned 2020-06-29T22:42:22Z
dc.date.available 2020-06-29T22:42:22Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2016
dc.date.issued 2016-01-01
dc.description.abstract <p>Using x-ray computed tomography (CT) for non-destructive 3-D imaging and analysis of soil physical properties has been investigated for over 30 years. However, applying this system in soil science has remained a specialized research area using primarily low-resolution medical-grade x-ray CT units that were not designed for soil analysis applications. The main research objectives were to characterize and compare physical properties of soil core samples from long-term chisel plow (CP) and no-till (NT) agricultural field management sites using a high-resolution industrial-grade x-ray CT unit and two conventional soil laboratory method (SLM) soil macroporosity analysis procedures. Field research activities during 1999 included collecting four soil columns for each CP and NT soil management practice at the Iowa State University Northeast Research and Demonstration Farm at Nashua, Iowa. Findings from this study indicate that percent macroporosity and soil bulk density values were significantly higher and lower, respectively, for annual CP rowcrop (corn and soybean) versus annual NT rowcrop systems. Since the soil structure of perennial NT vegetation (native grasses and trees) is similar to CP, rowcrop practices could explain inconsistent soil hydraulic conductivity values from NT cropping systems. These results underscore the potential of x-ray CT as an effective soil porosity analysis tool and suggest the development of an online database of x-ray CT 3-D soil core images based on soil type and tillage system. This readily available information could aid scientists in soil structural analysis applications, potentially avoiding the limitations of x-ray CT unit cost and system availability issues.</p>
dc.description.comments <p>This article is from <em>Transactions of the ASABE</em> 59 (2016): 455–463, doi:<a href="http://dx.doi.org/10.13031/trans.59.11308" target="_blank">10.13031/trans.59.11308</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/750/
dc.identifier.articleid 2031
dc.identifier.contextkey 8602368
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/750
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1548
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/750/2016_AmbertSanchez_EvaluatingSoil.pdf|||Sat Jan 15 01:49:37 UTC 2022
dc.source.uri 10.13031/trans.59.11308
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Computed tomography
dc.subject.keywords Conservation tillage practices
dc.subject.keywords Soil analysis and quantification
dc.subject.keywords Soil laboratory methods
dc.subject.keywords Soil physical properties
dc.subject.keywords X-ray CT scanner
dc.title Evaluating Soil Tillage Practices Using X-Ray Computed Tomography and Conventional Laboratory Methods
dc.type article
dc.type.genre article
dspace.entity.type Publication
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