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| Registros recuperados: 11 | |
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| Ali, Mir B.; McBride, William D.; Daberkow, Stan G.. |
| Adoption of new technologies, such as remote sensing, is slowed by such factors as high monetary and/or human capital costs and uncertainty about their value. This analysis explores the impact on nitrogen fertilizer use and efficiency and net returns among sugar beet producers in the Red River Valley from using remote sensing technologies and crop rotation for nitrogen management. The study found that cropping patterns had a significant impact on nitrogen use and net returns, but that most decision tools used for nitrogen management had little influence. The impact of using remotely sensed images for nitrogen management in sugar beets was not statistically significant. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2003 |
URL: http://purl.umn.edu/22052 |
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| Johnson, Roger G.; Ali, Mir B.. |
| Income and risk aspects of wheat-fallow cropping systems are analyzed in western North Dakota. A wheat yield trend estimation model based on county yields (1950-77) is developed using independent variables of year, annual precipitation, acres of nonfallowed wheat and a dummy variable for fallow and nonfallow practices. The year-to-year change in wheat yields on fallowed and nonfallowed land indicates that summer fallow is becoming less desirable economically. Based on 1980 costs and yields, summer fallow maximizes returns to land at low yields, low wheat prices, and high nitrogen prices. Income variability is reduced under summer fallow. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 1982 |
URL: http://purl.umn.edu/32425 |
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| Registros recuperados: 11 | |
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