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Brazil wheat yield covariance modelA model based on multiple regression was developed to estimate wheat yields for the wheat growing states of Rio Grande do Sul, Parana, and Santa Catarina in Brazil. The meteorological data of these three states were pooled and the years 1972 to 1979 were used to develop the model since there was no technological trend in the yields during these years. Predictor variables were derived from monthly total precipitation, average monthly mean temperature, and average monthly maximum temperature.
Document ID
19840013853
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Callis, S. L. (National Oceanic and Atmospheric Administration Columbia, MO, United States)
Sakamoto, C. (National Oceanic and Atmospheric Administration Columbia, MO, United States)
Date Acquired
September 4, 2013
Publication Date
January 16, 1984
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
NAS 1.26:173372
YM-N4-04454
E84-10103
JSC-18906
NASA-CR-173372
Accession Number
84N21921
Funding Number(s)
PROJECT: PROJ. AGRISTARS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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