Persistent Link:
http://hdl.handle.net/10150/210944
Title:
Field Determination of Permanent Wilting Point
Author:
Norton, E. R.; Silvertooth, J. C.
Issue Date:
Mar-1997
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Cotton: A College of Agriculture Report
Abstract:
Water is a vital resource for cotton production in the desert Southwest. One method of managing irrigation water is through the use of a "checkbook" approach to irrigation scheduling. This involves irrigating based upon the percent depletion of plant available water (PAK9 from the soil profile. In order to effectively utilize this method of irrigation scheduling soil water content values at field capacity (FC) and permanent wilting point (PWP) must be defined. In this study the PWP values were characterized for Iwo different soil types, one at Maricopa, AZ and another at Marana, AZ. The possibility of having different values for PWP as a function of crop stage of growth was also investigated in this study. Results demonstrated differences in both FC and PWP values between the two locations. Differences were also observed as a function of crop growth stage in the pattern of soil water extraction.
Keywords:
Agriculture -- Arizona; Cotton -- Arizona; Cotton -- Irrigation
Series/Report no.:
370108; Series P-108

Full metadata record

DC FieldValue Language
dc.titleField Determination of Permanent Wilting Point-
dc.contributor.authorNorton, E. R.en_US
dc.contributor.authorSilvertooth, J. C.en_US
dc.date.issued1997-03-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalCotton: A College of Agriculture Reporten_US
dc.description.abstractWater is a vital resource for cotton production in the desert Southwest. One method of managing irrigation water is through the use of a "checkbook" approach to irrigation scheduling. This involves irrigating based upon the percent depletion of plant available water (PAK9 from the soil profile. In order to effectively utilize this method of irrigation scheduling soil water content values at field capacity (FC) and permanent wilting point (PWP) must be defined. In this study the PWP values were characterized for Iwo different soil types, one at Maricopa, AZ and another at Marana, AZ. The possibility of having different values for PWP as a function of crop stage of growth was also investigated in this study. Results demonstrated differences in both FC and PWP values between the two locations. Differences were also observed as a function of crop growth stage in the pattern of soil water extraction.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectCotton -- Arizonaen_US
dc.subjectCotton -- Irrigationen_US
dc.identifier.urihttp://hdl.handle.net/10150/210944-
dc.relation.ispartofseries370108en_US
dc.relation.ispartofseriesSeries P-108en_US
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