Prediction of cation distribution, gypsum requirement, and infiltration rate in dynamic soil-water systems

Persistent Link:
http://hdl.handle.net/10150/191463
Title:
Prediction of cation distribution, gypsum requirement, and infiltration rate in dynamic soil-water systems
Author:
Terkeltoub, Richard Wayne,1943-
Issue Date:
1965
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 computer program for prediction of the cation distribution resulting from irrigation of a layered soil was prepared. Half scale models of a ten-layer soil profile were constructed from chemically unaltered Qua Loam aid Qua Silt Loam soil samples A synthetic Colorado River water was the percolating solution. Comparison of predicted and experiments], results showed satisfactory agreement. A gypsum requirement prediction loop was inserted into the program. This loop predicted the quantities necessary to reduce the exchangeable sodium percentage of a given layer to a desired level. Intensive experimental investigation proved this method of prediction accurate. The dependence of the hydraulic conductivity of a soil upon its exchangeable sodium percentage was taken advantage of in an attempt at prediction of infiltration rates during irrigation. Despite elaborate precautions against interference by extraneous factors, the attempt was not successful. The source of error was probably the formation of a soil film of high exchangeable sodium percentage at the interface between the soil column and the percolating solution.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Cations.; Irrigation.; Soil percolation.; Soil moisture.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Agricultural Chemistry and Soils; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Dutt, Gordon R.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titlePrediction of cation distribution, gypsum requirement, and infiltration rate in dynamic soil-water systemsen_US
dc.creatorTerkeltoub, Richard Wayne,1943-en_US
dc.contributor.authorTerkeltoub, Richard Wayne,1943-en_US
dc.date.issued1965en_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 computer program for prediction of the cation distribution resulting from irrigation of a layered soil was prepared. Half scale models of a ten-layer soil profile were constructed from chemically unaltered Qua Loam aid Qua Silt Loam soil samples A synthetic Colorado River water was the percolating solution. Comparison of predicted and experiments], results showed satisfactory agreement. A gypsum requirement prediction loop was inserted into the program. This loop predicted the quantities necessary to reduce the exchangeable sodium percentage of a given layer to a desired level. Intensive experimental investigation proved this method of prediction accurate. The dependence of the hydraulic conductivity of a soil upon its exchangeable sodium percentage was taken advantage of in an attempt at prediction of infiltration rates during irrigation. Despite elaborate precautions against interference by extraneous factors, the attempt was not successful. The source of error was probably the formation of a soil film of high exchangeable sodium percentage at the interface between the soil column and the percolating solution.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshCations.en_US
dc.subject.lcshIrrigation.en_US
dc.subject.lcshSoil percolation.en_US
dc.subject.lcshSoil moisture.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineAgricultural Chemistry and Soilsen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairDutt, Gordon R.en_US
dc.identifier.oclc213885378en_US
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