KeywordsAgriculture -- Arizona
Irrigation -- Arizona -- Salt River Valley
Irrigation efficiency -- Arizona -- Salt River Valley
Alfalfa -- Irrigation -- Arizona
Cotton -- Irrigation -- Arizona
Irrigation -- Research -- Arizona -- Salt River Valley
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Series/Report no.Bulletin (University of Arizona, Agricultural Experiment Station) No. 120
DescriptionThis item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
Preface by G. E. P. Smith
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Effects of High Frequency Irrigation on Irrigation Uniformity IIMartin, E. C.; Wegge, R.; Sheedy, M.; Silvertooth, Jeff; University of Arizona, Cooperative Extension (College of Agriculture, University of Arizona (Tucson, AZ), 2000)Another year of data was collected to determine the effects of high frequency irrigation on irrigation uniformity in cotton production. A field located at the Marana Agricultural Center was split into two treatments. Treatment one was irrigated at approximately 35% depletion of available water in the plant rootzone. Treatment two was irrigated at approximately 65% depletion in the crop rootzone. Increased frequency of irrigation has shown improved yields in many cotton studies. However, these more frequent and lighter irrigation applications may cause problems with irrigation uniformity. Frequent rains during critical time periods made it difficult to ascertain the impact of the irrigation schedule on uniformity. However, the less frequent, heavier application rate did result in a more uniform irrigation.