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Comparison of crd, apu, and state models for iowa corn and soybeans and north dakota barley and spring wheat
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | French, V. |
| Copyright Year | 1983 |
| Description | A comparison was made among the CEAS crop reporting district (CRD), agrophysical unit (APU), and state level multiple regression yield models for corn and soybeans in Iowa and barley and spring wheat in North Dakota. The best predictions were made by the state model for North Dakota spring wheat, by the APU models for barley, by the CRD models for Iowa soybeans, and by APU covariance models for Iowa corn. Because of this lack of consistency of model performance, CRD models would be recommended due to the availability of the data. |
| File Size | 4685111 |
| Page Count | 23 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830023861 |
| Archival Resource Key | ark:/13960/t6b32pw9m |
| Language | English |
| Publisher Date | 1983-05-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Barley Soybeans Earth Resources Program Corn Regression Analysis Agrophysical Units Iowa Agristars Project Comparison North Dakota Yield Mathematical Models Wheat Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
