Influence of area on winter wheat climatic models

✍ Scribed by D. M. Greene; S. M. Sutherland; M. B. Kirkham

• Book ID: 104637400
• Publisher: Springer
• Year: 1979
• Tongue: English
• Weight: 501 KB
• Volume: 2
• Category: Article
• ISSN: 0165-0009
• DOI: 10.1007/bf00138224

✦ Synopsis

Two areal scales were used to determine the effect of land size on wheat yield estimates from climatic data. The larger scale was the state of Oklahoma and the smaller scale included five crop reporting districts within the state. Two multilinear regression models were developed. One used unadjusted, and the other square-root adjusted, climatic data. Any comparative advantage of district modeling over a state model was judged upon the correlation coefficients of the model and its estimation capability over a five year trial period. When state and district models were compared in estimation capability, the state model achieved more accurate yield estimates of district wheat yields than did the individual district models.