Persistent Link:
http://hdl.handle.net/10150/201383
Title:
Nitrate Leaching Potential from a Single Border-Flood Irrigation
Author:
Ottman, M. J.; Watson, J. E.
Issue Date:
Sep-1991
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Forage and Grain: A College of Agriculture Report
Abstract:
Groundwater contamination by nitrate and other chemicals is a public concern and has subjected agriculture to scrutiny. Field studies were conducted at the Maricopa and Marana Agricultural Centers in 1989 to 1990 to document nitrate leaching potential with border flood irrigation. Calcium nitrate fertilizer was applied at various rates along with potassium bromide, which serves as an additional indicator of nitrate movement. Approximately 8.55 inches of irrigation water was applied at the Maricopa site on a sandy loam soil and 4.0 inches of irrigation water was applied at the Marana site on a clay loam soil. At the Maricopa site, only 64% of the nitrate could be accounted for in the top 6.7 ft. while most of the nitrate was found in the top 4 to 5 ft. at Marana. The water and nitrate moved 3 to 4 times deeper than predicted in the absence of preferential flow.
Keywords:
Agriculture -- Arizona; Grain -- Arizona; Forage plants -- Arizona; Barley -- Arizona; Durum -- Arizona; Wheat -- Arizona; Barley -- Fertilization and irrigation; Durum -- Fertilization and irrigation; Wheat -- Fertilization and irrigation
Series/Report no.:
370090; Series P-90

Full metadata record

DC FieldValue Language
dc.titleNitrate Leaching Potential from a Single Border-Flood Irrigationen_US
dc.contributor.authorOttman, M. J.en_US
dc.contributor.authorWatson, J. E.en_US
dc.date.issued1991-09-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalForage and Grain: A College of Agriculture Reporten_US
dc.description.abstractGroundwater contamination by nitrate and other chemicals is a public concern and has subjected agriculture to scrutiny. Field studies were conducted at the Maricopa and Marana Agricultural Centers in 1989 to 1990 to document nitrate leaching potential with border flood irrigation. Calcium nitrate fertilizer was applied at various rates along with potassium bromide, which serves as an additional indicator of nitrate movement. Approximately 8.55 inches of irrigation water was applied at the Maricopa site on a sandy loam soil and 4.0 inches of irrigation water was applied at the Marana site on a clay loam soil. At the Maricopa site, only 64% of the nitrate could be accounted for in the top 6.7 ft. while most of the nitrate was found in the top 4 to 5 ft. at Marana. The water and nitrate moved 3 to 4 times deeper than predicted in the absence of preferential flow.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectGrain -- Arizonaen_US
dc.subjectForage plants -- Arizonaen_US
dc.subjectBarley -- Arizonaen_US
dc.subjectDurum -- Arizonaen_US
dc.subjectWheat -- Arizonaen_US
dc.subjectBarley -- Fertilization and irrigationen_US
dc.subjectDurum -- Fertilization and irrigationen_US
dc.subjectWheat -- Fertilization and irrigationen_US
dc.identifier.urihttp://hdl.handle.net/10150/201383-
dc.relation.ispartofseries370090en_US
dc.relation.ispartofseriesSeries P-90en_US
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