Persistent Link:
http://hdl.handle.net/10150/203659
Title:
Fluctuation in Lower Stem Nitrate Concentration in Small Grains, 2006
Author:
Ottman, Michael J.
Issue Date:
Oct-2007
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Forage and Grain: A College of Agriculture and Life Sciences Report
Abstract:
Lower stem nitrate concentration is used as a guide for fertilization of small grains in Arizona. The objective of this study is to determine if the timing of stem sampling has an appreciable effect on stem nitrate and corresponding fertilizer recommendations. Durum and barley were grown at the Maricopa Agricultural Center and lower stems were analyzed for nitrate from 3-leaf to maturity. The lower stem nitrate concentration initially climbed from 3000 ppm at 3-leaf to 10,000 ppm around the 2-node stage. It then gradually declined from the 2-node stage until maturity when it fell to less than 3000 ppm In this study, the timing of the stem sampling would not have affected fertilizer recommendations, although considerable fluctuation in stem nitrate concentration was measured.
Keywords:
Agriculture -- Arizona; Grain -- Arizona; Forage plants -- Arizona; Barley -- Arizona; Wheat -- Arizona; Barley -- Stem nitrate fluctuation; Wheat -- Stem nitrate fluctuation
Series/Report no.:
AZ1442; Series P-154

Full metadata record

DC FieldValue Language
dc.titleFluctuation in Lower Stem Nitrate Concentration in Small Grains, 2006en_US
dc.contributor.authorOttman, Michael J.en_US
dc.date.issued2007-10-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalForage and Grain: A College of Agriculture and Life Sciences Reporten_US
dc.description.abstractLower stem nitrate concentration is used as a guide for fertilization of small grains in Arizona. The objective of this study is to determine if the timing of stem sampling has an appreciable effect on stem nitrate and corresponding fertilizer recommendations. Durum and barley were grown at the Maricopa Agricultural Center and lower stems were analyzed for nitrate from 3-leaf to maturity. The lower stem nitrate concentration initially climbed from 3000 ppm at 3-leaf to 10,000 ppm around the 2-node stage. It then gradually declined from the 2-node stage until maturity when it fell to less than 3000 ppm In this study, the timing of the stem sampling would not have affected fertilizer recommendations, although considerable fluctuation in stem nitrate concentration was measured.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectGrain -- Arizonaen_US
dc.subjectForage plants -- Arizonaen_US
dc.subjectBarley -- Arizonaen_US
dc.subjectWheat -- Arizonaen_US
dc.subjectBarley -- Stem nitrate fluctuationen_US
dc.subjectWheat -- Stem nitrate fluctuationen_US
dc.identifier.urihttp://hdl.handle.net/10150/203659-
dc.relation.ispartofseriesAZ1442en_US
dc.relation.ispartofseriesSeries P-154en_US
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