Persistent Link:
http://hdl.handle.net/10150/197989
Title:
Foliar applications of Lo-Biuret Urea and Potassium Phosphite to Navel Orange trees
Author:
Wright, Glenn C.; Peña, Marco
Issue Date:
2004
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Citrus Research Report
Abstract:
This experiment was established in January 2000 in a block of ‘Washington’ navel orange trees at Verde Growers, Stanfield, AZ. Treatments included: normal grower practice, winter low biuret (LB) urea application, summer LB urea application, winter LB urea application plus winter and spring potassium phosphite, winter LB urea application plus summer potassium phosphite, and normal grower practice plus spring potassium phosphite. Each treatment was applied to approximately four acres of trees. For 2000-01, yields ranged from 40 to 45 lbs. per tree, and there was no effect of treatments upon total yield, and only slight effect upon fruit size, grade and quality. For 2001-02, there was a slight effect of treatment upon yield as LB urea led to improved yield, while potassium phosphite led to reduced yield. Normal grower practice was intermediate between these two extremes. For 2002-03, we noted a large increase in yield, however the yield data was lost when the block was inadvertently harvested. For 2005, there was no effect of treatments upon total yield.
Keywords:
Agriculture -- Arizona; Citrus fruits -- Arizona; Citrus -- Fertilization Practices
Series/Report no.:
AZ1427; Series P-149
Sponsors:
Arizona Citrus Research Council

Full metadata record

DC FieldValue Language
dc.titleFoliar applications of Lo-Biuret Urea and Potassium Phosphite to Navel Orange treesen_US
dc.contributor.authorWright, Glenn C.en_US
dc.contributor.authorPeña, Marcoen_US
dc.date.issued2004-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCitrus Research Reporten_US
dc.description.abstractThis experiment was established in January 2000 in a block of ‘Washington’ navel orange trees at Verde Growers, Stanfield, AZ. Treatments included: normal grower practice, winter low biuret (LB) urea application, summer LB urea application, winter LB urea application plus winter and spring potassium phosphite, winter LB urea application plus summer potassium phosphite, and normal grower practice plus spring potassium phosphite. Each treatment was applied to approximately four acres of trees. For 2000-01, yields ranged from 40 to 45 lbs. per tree, and there was no effect of treatments upon total yield, and only slight effect upon fruit size, grade and quality. For 2001-02, there was a slight effect of treatment upon yield as LB urea led to improved yield, while potassium phosphite led to reduced yield. Normal grower practice was intermediate between these two extremes. For 2002-03, we noted a large increase in yield, however the yield data was lost when the block was inadvertently harvested. For 2005, there was no effect of treatments upon total yield.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCitrus fruits -- Arizonaen_US
dc.subjectCitrus -- Fertilization Practicesen_US
dc.identifier.urihttp://hdl.handle.net/10150/197989-
dc.relation.ispartofseriesAZ1427en_US
dc.relation.ispartofseriesSeries P-149en_US
dc.description.sponsorshipArizona Citrus Research Councilen_US
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