Irradiance, total nitrogen, and nitrate-N: ammonium-N ratio requirements for optimal edible biomass production of basil

dc.contributor.advisor Richard J. Gladon
dc.contributor.advisor Gail R. Nonnecke
dc.contributor.advisor Loren C. Stephens
dc.contributor.author Beaman, Angela
dc.contributor.department Horticulture
dc.date 2018-08-22T18:46:20.000
dc.date.accessioned 2020-06-30T07:44:47Z
dc.date.available 2020-06-30T07:44:47Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2008
dc.date.issued 2008-01-01
dc.description.abstract <p>Our objective was to determine the optimal irradiance, total N concentration, and NO3--N:NH4+-N ratio for greatest edible biomass production of three cultivars of basil (Basilicum ocimum L.) in a controlled-environment production system. Preliminary experiments showed basil required a dark period, but the duration of the dark period was not resolved. Based on our results, canopy-level irradiance should not exceed 500 mumol/m2/s to conserve energy while enabling the greatest edible biomass production of basil in a controlled-environment production system. Optimal edible biomass production occurred at 100 to 250 mg N/L at a ratio of 50:50 nitrate-N : ammonium-N. All plants died in the 100% ammonium-N treatment. Regression models that allow analysis for optimum conditions suggest a nitrate-N : ammonium-N ratio of 50:50 to 75:25 yielded the greatest biomass of basil.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/15474/
dc.identifier.articleid 16473
dc.identifier.contextkey 7029088
dc.identifier.doi https://doi.org/10.31274/rtd-180813-16696
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/15474
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/69110
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/15474/1454667.PDF|||Fri Jan 14 20:41:33 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Horticulture
dc.subject.keywords Horticulture
dc.title Irradiance, total nitrogen, and nitrate-N: ammonium-N ratio requirements for optimal edible biomass production of basil
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication df043cd4-424c-49f5-8685-318972aae642
thesis.degree.level thesis
thesis.degree.name Master of Science
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