Comparison of Three Irrigation Scheduling Methods and Evaluation of Irrigation Leaching Characteristics

Persistent Link:
http://hdl.handle.net/10150/204858
Title:
Comparison of Three Irrigation Scheduling Methods and Evaluation of Irrigation Leaching Characteristics
Author:
Scherer, T.; Slack, D.; Watson, J.; Fox, F.
Issue Date:
Mar-1989
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Cotton: A College of Agriculture Report
Abstract:
Three methods were used to schedule irrigations on replicated plots at the Maricopa Ag Center using DPL 90 cotton. The three methods were: a soil water balance model based on historic consumptive use curves, a soil water balance model based on the Modified Penman Equation and daily weather (AZMET), and infrared thermometry using the C.W.S.I. A potassium-bromide conservative tracer was applied at selected sites in the plots to evaluate leaching characteristics. The irrigation scheduling test was duplicated at the Safford Experiment Station and is presented in another report. Results from the 1988 data indicate that there was no significant difference in yield between the 3 methods. There was a significant difference in water applied; the historic consumptive-use curves was the lowest and the Penman equation method was the highest.
Keywords:
Agriculture -- Arizona; Cotton -- Arizona; Cotton -- Irrigation
Series/Report no.:
370077; Series P-77

Full metadata record

DC FieldValue Language
dc.titleComparison of Three Irrigation Scheduling Methods and Evaluation of Irrigation Leaching Characteristicsen_US
dc.contributor.authorScherer, T.en_US
dc.contributor.authorSlack, D.en_US
dc.contributor.authorWatson, J.en_US
dc.contributor.authorFox, F.en_US
dc.date.issued1989-03-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCotton: A College of Agriculture Reporten_US
dc.description.abstractThree methods were used to schedule irrigations on replicated plots at the Maricopa Ag Center using DPL 90 cotton. The three methods were: a soil water balance model based on historic consumptive use curves, a soil water balance model based on the Modified Penman Equation and daily weather (AZMET), and infrared thermometry using the C.W.S.I. A potassium-bromide conservative tracer was applied at selected sites in the plots to evaluate leaching characteristics. The irrigation scheduling test was duplicated at the Safford Experiment Station and is presented in another report. Results from the 1988 data indicate that there was no significant difference in yield between the 3 methods. There was a significant difference in water applied; the historic consumptive-use curves was the lowest and the Penman equation method was the highest.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCotton -- Arizonaen_US
dc.subjectCotton -- Irrigationen_US
dc.identifier.urihttp://hdl.handle.net/10150/204858-
dc.relation.ispartofseries370077en_US
dc.relation.ispartofseriesSeries P-77en_US
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.