Show simple item record

dc.contributor.authorBerg, W. A.
dc.date.accessioned2020-09-24T02:38:00Z
dc.date.available2020-09-24T02:38:00Z
dc.date.issued1990-05-01
dc.identifier.citationBerg, W. A. (1990). Old World bluestem responses to nitrogen fertilization. Journal of Range Management, 43(3), 265-270.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/3898687
dc.identifier.urihttp://hdl.handle.net/10150/644902
dc.description.abstractOld World bluestem (Bothriochloa ischaemum L.) is being extensively seeded on marginal farmland in the Southern Plains. This field study was conducted in western Oklahoma to develop guidelines for efficient N fertilization of this perennial, warmseason grass established on soil depleted in plant-available N by 80 to 90 years of cultivation and erosion. Ammonium nitrate at 0, 35, 70, and 105 kg N ha-1 yr-1 was broadcast on Old World bluestem stands for 5 years on Woodward sandy loam (Typic Ustocrept) and for 3 years on Pratt loamy sand (Psammentic Haplustalf). Forage production averaged 800 kg ha-1 yr-1 without N fertilization. An average of 30 kg of forage was produced per kg N applied at rates of 35 and 70 kg N ha-1 yr-1. The 105 kg N ha-1 yr-1 treatment produced substantially more forage than the 70 kg N ha-1 yr-1 treatment only in years with above-average precipitation or favorable precipitation distribution. Partial die-out of Old World bluestem occurred one year; N fertilization increased die-out on Pratt loamy sand. Application of 70 kg N ha-1 in April was more effective in forage production and fertilizer N use in some years than split applications of 35 kg N ha-1 in April and June. Accumulation of N in forage over 5 years, plus residual N in stem bases, roots, and the surface 0.1 m of the Woodward sandy loam was 1,040 and 1,350 kg N ha-1 for the 0 N and 70 kg N ha-1 yr-1 treatments, respectively. The difference of these values, 310 kg N ha-1, suggests that most of the 350 kg N ha-1 applied over 5 years was accounted for; however, the standard error of difference between the means was large (50 kg N ha-1).
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.subjectmarginal farms
dc.subjectyield response functions
dc.subjectnutrient deficiencies
dc.subjectplains
dc.subjectBothriochloa ischaemum
dc.subjectnitrogen fertilizers
dc.subjectcrop production
dc.subjectsandy loam soils
dc.subjectOklahoma
dc.subjectsoil water
dc.titleOld World bluestem responses to nitrogen fertilization
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.volume43
dc.source.issue3
dc.source.beginpage265-270
refterms.dateFOA2020-09-24T02:38:00Z


Files in this item

Thumbnail
Name:
8489-8370-2-PB.pdf
Size:
670.4Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record