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An Approach to Precise Nitrogen Management Using Hand-Held Crop Sensor Measurements and Winter Wheat Yield Mapping in a Mediterranean Environment

Opened Access An Approach to Precise Nitrogen Management Using Hand-Held Crop Sensor Measurements and Winter Wheat Yield Mapping in a Mediterranean Environment

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Autor: Pérez Ruiz, Manuel
Quebrajo, Lucía
Rodríguez Lizana, Antonio
Agüera, Juan
Departamento: Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos
Fecha: 2015
Publicado en: Sensors, 15 (3), 5504-5517.
Tipo de documento: Artículo
Resumen: Regardless of the crop production system, nutrients inputs must be controlled at or below a certain economic threshold to achieve an acceptable level of profitability. The use of management zones and variable-rate fertilizer applications is gaining popularity in precision agriculture. Many researchers have evaluated the application of final yield maps and geo-referenced geophysical measurements (e.g., apparent soil electrical conductivity-ECa) as a method of establishing relatively homogeneous management zones within the same plot. Yield estimation models based on crop conditions at certain growth stages, soil nutrient statuses, agronomic factors, moisture statuses, and weed/pest pressures are a primary goal in precision agriculture. This study attempted to achieve the following objectives: (1) to investigate the potential for predicting winter wheat yields using vegetation measurements (the Normalized Difference Vegetation Index—NDVI) at the beginning of the season, thereb...
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Cita: Pérez Ruiz, M., Quebrajo, L., Rodriguez-Lizana, A. y Agüera, J. (2015). An Approach to Precise Nitrogen Management Using Hand-Held Crop Sensor Measurements and Winter Wheat Yield Mapping in a Mediterranean Environment. Sensors, 15 (3), 5504-5517.
Tamaño: 5.148Mb
Formato: PDF

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URI: http://hdl.handle.net/11441/42178

DOI: http://dx.doi.org/10.3390/s150305504

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