Sample Volume Effect on the Determination of Nitrate-Nitrogen in the Soil Profile

dc.contributor.author Baker, D.
dc.contributor.author Kanwar, Rameshwar
dc.contributor.author Kanwar, Rameshwar
dc.contributor.author Baker, James
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-17T06:13:39.000
dc.date.accessioned 2020-06-29T22:41:54Z
dc.date.available 2020-06-29T22:41:54Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 1989
dc.date.issued 1989
dc.description.abstract <p>A field experiment was conducted to evaluate the effect and reliability of soil sample volume on nitrate-nitrogen (NO3-N) and soil-water content in the soil. Four soil sampling devices (a 20.3-cm power earth auger, a 5.1-cm hand earth auger, a 3.2-cm soil probe and a 1.9-cm soil probe) were used to collect soil samples from 35 conventionally tilled and 35 no-till locations. Soil samples were taken at 30-cm intervals to a depth of 150 cm with each of the four sampling devices and were analyzed for NO3-N and moisture contents. Results of this study indicate that sample volume has no significant effect on determining soil-moisture content. Sample volume also had no effect on NO3-N concentration in the soil water under no-till conditions but had a definite impact on the NO3-N levels in the conventionally tilled soils. Results further indicate that a 5.1-cm diameter sample may best predict the quantity of residual soil NO3-N.</p>
dc.description.comments <p>This article was published in <em>Transactions of the ASAE</em> 32 (1989): 934–938, doi:<a href="http://dx.doi.org/10.13031/2013.31094" target="_blank">10.13031/2013.31094</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/693/
dc.identifier.articleid 1983
dc.identifier.contextkey 7850445
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/693
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1486
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/693/1989_Baker_SampleVolume.pdf|||Sat Jan 15 01:31:00 UTC 2022
dc.source.uri 10.13031/2013.31094
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Soil Science
dc.title Sample Volume Effect on the Determination of Nitrate-Nitrogen in the Soil Profile
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 5210e67e-b8da-4e17-be3f-843a09381196
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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