Persistent Link:
http://hdl.handle.net/10150/192083
Title:
Nitrate losses beneath an irrigated cotton field
Author:
Cordell, Susan Chapman.
Issue Date:
1994
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A field experiment was conducted for the purpose of analyzing the movement of water fronts and NO3-N leaching. A four-acre irrigated cotton field was divided into 12 sections with 2 plots in each. Each section represented a unit in an randomized complete block design, using two N treatments, two irrigation treatments and two samples sites. Cl⁻ and Br were used as conservative tracers to measure depth of water movement. At the conclusion of the growing season, twenty-four 10 ft. soil cores were removed from the field and analyzed for concentrations of NO3-N, Cl⁻ and Br⁻. Correlations existed between 15-bar water-holding capacity and chloride concentrations. The depth of the bromide front was significantly greater (p<5%) for the 70% irrigation efficiency than for the 90% efficiency. The concentration of nitrate-N below 5 feet was significantly lower for the 70% efficiency than for the 90% efficiency.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Nitrates -- Environmental aspects.; Soils -- Leaching.; Cotton -- Irrigation.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Soil and Water Science; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Watson, Jack

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleNitrate losses beneath an irrigated cotton fielden_US
dc.creatorCordell, Susan Chapman.en_US
dc.contributor.authorCordell, Susan Chapman.en_US
dc.date.issued1994en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractA field experiment was conducted for the purpose of analyzing the movement of water fronts and NO3-N leaching. A four-acre irrigated cotton field was divided into 12 sections with 2 plots in each. Each section represented a unit in an randomized complete block design, using two N treatments, two irrigation treatments and two samples sites. Cl⁻ and Br were used as conservative tracers to measure depth of water movement. At the conclusion of the growing season, twenty-four 10 ft. soil cores were removed from the field and analyzed for concentrations of NO3-N, Cl⁻ and Br⁻. Correlations existed between 15-bar water-holding capacity and chloride concentrations. The depth of the bromide front was significantly greater (p<5%) for the 70% irrigation efficiency than for the 90% efficiency. The concentration of nitrate-N below 5 feet was significantly lower for the 70% efficiency than for the 90% efficiency.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshNitrates -- Environmental aspects.en_US
dc.subject.lcshSoils -- Leaching.en_US
dc.subject.lcshCotton -- Irrigation.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineSoil and Water Scienceen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairWatson, Jacken_US
dc.identifier.oclc225577254en_US
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