dc.contributor.author	Jones, Bruce	en
dc.contributor.committeechair	Reed, T. David	en
dc.contributor.committeemember	Baker, James C.	en
dc.contributor.committeemember	Morse, Ronald D.	en
dc.contributor.committeemember	Jones, James L.	en
dc.contributor.department	Crop and Soil Environmental Sciences	en
dc.date.accessioned	2014-03-14T21:26:35Z	en
dc.date.adate	1999-01-05	en
dc.date.available	2014-03-14T21:26:35Z	en
dc.date.issued	1998-12-08	en
dc.date.rdate	2000-01-05	en
dc.date.sdate	1999-01-05	en
dc.description.abstract	Conservation tillage tobacco production has gained little producer acceptance since introduction in the late 1960's. Yield reductions, tobacco quality issues, unacceptable weed control, and inadequate planting equipment limited practice adoption and substantiated the need for continued research. The recent developments of a Subsurface Tiller-TransplanterTM and the herbicide SpartanTM renewed producer interest in conservation tillage and led to an investigation with both flue-cured and Virginia dark-fired tobacco. Flue-cured tobacco was transplanted into rye mulch on bedded rows and subsequently cultivated at various timings. Conservation tillage significantly reduced soil erosion approximately 92 percent and tobacco yield approximately 23 percent when row cultivation was not applied. Row cultivation significantly increased tobacco yield without increasing soil erosion. The yield of conservation tillage tobacco receiving a minimum of two cultivations was similar to conventional tobacco. The second study evaluated wheat, rye, crimson clover, and mixtures of crimson clover with either wheat or rye as cover crop mulches for conservation tillage production of Virginia dark-fired tobacco. Conservation tillage, regardless of cover crop, reduced dark-fired tobacco yields approximately 779 and 488 pounds per acre in 1996 and 1997, respectively. The removal of cover crop residue for hay did not lower tobacco yield compared to leaving residue on the soil surface. Row cultivation increased conservation tillage tobacco yield approximately 247 pounds in 1997 regardless of cover crop. The nitrogen contribution of crimson clover was minimal in both years of the study and did not affect tobacco performance.	en
dc.description.degree	Master of Science	en
dc.identifier.other	etd-010599-155417	en
dc.identifier.sourceurl	http://scholar.lib.vt.edu/theses/available/etd-010599-155417/	en
dc.identifier.uri	http://hdl.handle.net/10919/40537	en
dc.publisher	Virginia Tech	en
dc.relation.haspart	applist.pdf	en
dc.relation.haspart	abstract.pdf	en
dc.relation.haspart	chap3.pdf	en
dc.relation.haspart	title.pdf	en
dc.relation.haspart	chap1.pdf	en
dc.relation.haspart	chap5.pdf	en
dc.relation.haspart	toc.pdf	en
dc.relation.haspart	appdixc.pdf	en
dc.relation.haspart	chap2.pdf	en
dc.relation.haspart	acknow.pdf	en
dc.relation.haspart	appdixa.pdf	en
dc.relation.haspart	figlist.pdf	en
dc.relation.haspart	tbllist.pdf	en
dc.relation.haspart	appdixb.pdf	en
dc.relation.haspart	chap4.pdf	en
dc.relation.haspart	appdixd.pdf	en
dc.relation.haspart	vita.pdf	en
dc.relation.haspart	chap6.pdf	en
dc.rights	In Copyright	en
dc.rights.uri	http://rightsstatements.org/vocab/InC/1.0/	en
dc.subject	Particle size analysis	en
dc.subject	Tobacco	en
dc.subject	Row cultivation	en
dc.subject	Cover crops	en
dc.title	Impact of Conservation Tillage on Soil Erosion and the Agronomic Performance of Flue-Cured Tobacco	en
dc.type	Thesis	en
thesis.degree.discipline	Crop and Soil Environmental Sciences	en
thesis.degree.grantor	Virginia Polytechnic Institute and State University	en
thesis.degree.level	masters	en
thesis.degree.name	Master of Science	en

Impact of Conservation Tillage on Soil Erosion and the Agronomic Performance of Flue-Cured Tobacco

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