Evaluation of two furrow infiltration measuring methods and furrow spacings

Persistent Link:
http://hdl.handle.net/10150/277171
Title:
Evaluation of two furrow infiltration measuring methods and furrow spacings
Author:
Nyawakira, Bernard, 1955-
Issue Date:
1989
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:
The effect of furrow spacing on infiltration should be determined in order to properly design an irrigation system. The blocked furrow infiltrometer (BFI) and the flowing furrow infiltrometer (FFI) methods were investigated for this purpose in two areas upon a precision field furrow. Three irrigations were performed in each method. The initial and final soil moisture contents (before and after irrigation), the furrow cross-section (before and after irrigation), the inflow volume and the furrow water surface elevations (during irrigation) were measured in each test furrow. Cumulative infiltration and infiltration rates were determined for each irrigation. The results indicate that the FFI test furrows infiltrated more water than did the BFI test furrows for the same infiltration time. The infiltration rates were higher in the FFI test furrows than in the BFI test furrows until they approach the basic intake rate. The infiltration rates were also higher during the 0.90 m spacing tests than during the 1.80 m spacing tests. The 0.90 m spacing test furrows infiltrated more water than did the 1.80 m spacing test furrows.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Furrow irrigation.; Soils, Irrigated.; Soil moisture.; Soil percolation.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Agricultural Engineering
Degree Grantor:
University of Arizona
Advisor:
Hart, William E.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleEvaluation of two furrow infiltration measuring methods and furrow spacingsen_US
dc.creatorNyawakira, Bernard, 1955-en_US
dc.contributor.authorNyawakira, Bernard, 1955-en_US
dc.date.issued1989en_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.abstractThe effect of furrow spacing on infiltration should be determined in order to properly design an irrigation system. The blocked furrow infiltrometer (BFI) and the flowing furrow infiltrometer (FFI) methods were investigated for this purpose in two areas upon a precision field furrow. Three irrigations were performed in each method. The initial and final soil moisture contents (before and after irrigation), the furrow cross-section (before and after irrigation), the inflow volume and the furrow water surface elevations (during irrigation) were measured in each test furrow. Cumulative infiltration and infiltration rates were determined for each irrigation. The results indicate that the FFI test furrows infiltrated more water than did the BFI test furrows for the same infiltration time. The infiltration rates were higher in the FFI test furrows than in the BFI test furrows until they approach the basic intake rate. The infiltration rates were also higher during the 0.90 m spacing tests than during the 1.80 m spacing tests. The 0.90 m spacing test furrows infiltrated more water than did the 1.80 m spacing test furrows.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectFurrow irrigation.en_US
dc.subjectSoils, Irrigated.en_US
dc.subjectSoil moisture.en_US
dc.subjectSoil percolation.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineAgricultural Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorHart, William E.en_US
dc.identifier.proquest1339051en_US
dc.identifier.oclc24488889en_US
dc.identifier.bibrecord.b17878639en_US
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