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dc.contributor.authorMasters, R. A.
dc.contributor.authorMitchell, R. B.
dc.contributor.authorVogel, K. P.
dc.contributor.authorWaller, S. S.
dc.date.accessioned2020-09-23T19:09:10Z
dc.date.available2020-09-23T19:09:10Z
dc.date.issued1993-03-01
dc.identifier.citationMasters, R. A., Mitchell, R. B., Vogel, K. P., & Waller, S. (1993). Influence of improvement practices on big bluestem and indiangrass seed production in tallgrass prairies. Journal of Range Management, 46(2), 183-188.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4002278
dc.identifier.urihttp://hdl.handle.net/10150/644581
dc.description.abstractTallgrass prairies provide a valuable source of diverse native plant germplasm. Seed harvested from native prairies can be used to revegetate highly erodible or marginal cropland and degraded rangeland if adequate quantities of seed can be produced. The effect of spring burning, fertilization, and atrazine [6-chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine] on big bluestem (Andropogon gerardii Vitman var. gerardii Vitman) and indiangrass [Sorghastrum nutans (L.) Nash] reproductive stem density and seed production was determined in 9 tallgrass prairie environments (each year by site was considered a unique environment). Studies were conducted at tallgrass prairies near Bloomfield, Lincoln, and Virginia Nebr., from 1987 through 1990. Atrazine was applied at rates of 0 and 2.2 kg a.iha-1 in mid-spring. Fertilizer rates applied in late spring were 0 and 110-0 kg N-P ha-1 at Lincoln in 1987, 0 and 110-22 kg N-P ha-1 at Bloomfield in 1987 and all sites in 1988, and 0 and 67-22 N-P kg ha-1 at all sites in 1989 and 1990. Improvement practices increased stem density of big bluestem in 5 environments and indiangrass in 4 environments. Number of germinable seed produced by the grasses was influenced by treatment only in 1987 and 1990 when precipitation amounts were above or near the long-term average. In 1987, atrazine increased indiangrass germinable seed number from 202 to 481 seed m-2 at Bloomfield. At Lincoln in 1987, the combined effects of fire, fertilizer, and atrazine increased the number of germinable indiangrass seed to 2,517 seed m-2 as compared to 331 seed m-2 produced on areas that had not been treated. In 1990, burning in mid-May increased big bluestem seed number from 52 to 125 germinable seed m-2 at Virginia, and fertilizer increased big bluestem seed number from 333 to 724 seed m-2 at Lincoln. The tallgrasses did not produce germinable seed in 1988 and 1989, presumably because of drought conditions that persisted both years. Improvement practices evaluated in this study increased native grass seed production when precipitation was adequate. However, no single treatment or combination of treatments reliably or consistently increased the number of seed produced and the absolute amount of seed produced on native prairies was low.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectseed characteristics
dc.subjectsexual reproduction
dc.subjectseed production
dc.subjectplant cultural practices
dc.subjectphosphorus fertilizers
dc.subjectatrazine
dc.subjectseeds
dc.subjectnitrogen fertilizers
dc.subjectspring
dc.subjectNebraska
dc.subjectSorghastrum nutans
dc.subjectprescribed burning
dc.subjectAndropogon gerardii
dc.subjectprairies
dc.subjectcrop yield
dc.titleInfluence of improvement practices on big blue-stem and indiangrass seed production in tallgrass prairies
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.noteThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume46
dc.source.issue2
dc.source.beginpage183-188
refterms.dateFOA2020-09-23T19:09:10Z


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