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Spatial variability of surface temperature as related to cropping practice with implications for irrigation managementCrop stress measured using thermal infrared emission is evaluated with the stress-degree-day (SDD) concept. Throughout the season, the accumulation of SDD during the reproductive stage of growth is inversely related to yield. This relationship is shown for durum wheat, hard red winter wheat, barley, grain sorghum and soybeans. It is noted that SDD can be used to schedule irrigations for maximizing yields and for applying remotely sensed data to management of water resources. An airborne flight with a thermal-IR scanner was used to examine the variability in temperature that may exist from one field to another and to determine realistic within-field temperature variations. It was found that the airborne and the ground-based data agreed very well and that there was less variability in the fields that were completely covered with crops than those of bare soil.
Document ID
19810039233
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Hatfield, J. L.
(California, University Davis, Calif., United States)
Millard, J. P.
(NASA Ames Research Center Moffett Field, Calif., United States)
Reginato, R. J.
(California Univ. Davis, CA, United States)
Jackson, R. D.
(California Univ. Davis, CA, United States)
Idso, S. B.
(California Univ. Davis, CA, United States)
Pinter, P. J., Jr.
(U.S. Department of Agriculture, Water Conservation Laboratory, Phoenix Ariz., United States)
Goettelman, R. C.
(LFE Corp. Palo Alto, Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: International Symposium on Remote Sensing of Environment
Location: San Jose
Country: Costa Rica
Start Date: April 23, 1980
End Date: April 30, 1980
Accession Number
81A23637
Distribution Limits
Public
Copyright
Other

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