Dry matter loss and compositional analysis of large switchgrass round bales during ambient storage in Virginia

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dc.contributor.authorBrumback, Clay T.en
dc.contributor.committeecochairCundiff, John S.en
dc.contributor.committeecochairMarsh, Lori S.en
dc.contributor.departmentAgricultural Engineeringen
dc.date.accessioned2014-03-14T21:42:46Zen
dc.date.adate2009-08-14en
dc.date.available2014-03-14T21:42:46Zen
dc.date.issued1995-08-07en
dc.date.rdate2009-08-14en
dc.date.sdate2009-08-14en
dc.description.abstractTwo varieties of switchgrass, Cave-N-Rock and Alamo, were baled into 1.8-m diameter by 1.2-m wide round bales and stored outside for 12 months. String-wrapped bales were stored on sad and net-wrapped bales on rock. Six bales (three-string-wrapped, three netwrapped) were destructively sampled at four, eight, and 12 months. Samples were collected for moisture content and compositional analysis. As expected, there was a large moisture content gradient from the weathered layer to the inner core, depending on drying conditions since the last precipitation. In one instance weathered layer moisture content was three times the core moisture content Netwrapped bales were drier than string-wrapped bales. Negligible dry matter loss (DML) was reported at four and eight months for Cave-N-Rock with DML no greater than 7% after 12 months of storage. Calculated DML was highly variable but no more than 16% of original dry matter after 12 months of storage for Alamo. For one set of six bales (Cave-N-Rock, sampled at eight months), the calculated dry matter loss was negative (meaning the bales gained dry matter during storage). This result is physically impossible and illustrates the difficulty in accurately measuring dry matter loss. DML was less for net-wrapped bales on rock than string-wrapped bales on sod.en
dc.description.degreeMaster of Scienceen
dc.format.extentxiii, 109 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-08142009-040527en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-08142009-040527/en
dc.identifier.urihttp://hdl.handle.net/10919/44237en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1995.B786.pdfen
dc.relation.isformatofOCLC# 34360141en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectround balesen
dc.subjectstorageen
dc.subjectswitchgrassen
dc.subjectcompositionen
dc.subject.lccLD5655.V855 1995.B786en
dc.titleDry matter loss and compositional analysis of large switchgrass round bales during ambient storage in Virginiaen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAgricultural Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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