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The use of large-area spectral data in wheat yield estimation (1982)

Barnett, T. L. ; Thompson, D. R.

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Publication Date: 2011-08-18

Description: Large-area relations between satellite spectral data and end-of-season crop yield were investigated. Green Index Number (GIN) values from Landsat MSS data of sample segments throughout the U.S. Great Plains winter wheat belt in 1978 were correlated to county USDA-SRS reported yields. A linear relation between GIN and yield appeared to exist up to GIN values of 40 or 50, covering cases of severe to moderate stress. In a test on 1978 Texas winter wheat at the county level, GIN values for sample segments in the counties were used in conjunction with an agronomic-meteorological yield model. The combined fit explained significantly more of the observed yield variation at the county level than the agromet model alone.

Keywords: EARTH RESOURCES AND REMOTE SENSING

Type: Remote Sensing of Environment; 12; Dec. 198

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