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Crop weather models of barley and spring wheat yield for agrophysical units in north dakota
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1982 |
| Description | Models based on multiple regression were developed to estimate barley yield and spring wheat yield from weather data for Agrophysical units(APU) in North Dakota. The predictor variables are derived from monthly average temperature and monthly total precipitation data at meteorological stations in the cooperative network. The models are similar in form to the previous models developed for Crop Reporting Districts (CRD). The trends and derived variables were the same and the approach to select the significant predictors was similar to that used in developing the CRD models. The APU models show sight improvements in some of the statistics of the models, e.g., explained variation. These models are to be independently evaluated and compared to the previously evaluated CRD models. The comparison will indicate the preferred model area for this application, i.e., APU or CRD. |
| File Size | 3835019 |
| Page Count | 38 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830006297 |
| Archival Resource Key | ark:/13960/t2h757q8g |
| Language | English |
| Publisher Date | 1982-06-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Barley Atmospheric Temperature Earth Resources Program Agristars Project North Dakota Crop Inventories Agrometeorology Mathematical Models Regression Analysis Precipitation Meteorology 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 |
