The application of small unmanned aerial systems for precision agriculture: a review

@article{Zhang2012TheAO,
  title={The application of small unmanned aerial systems for precision agriculture: a review},
  author={Chunhua Zhang and John M. Kovacs},
  journal={Precision Agriculture},
  year={2012},
  volume={13},
  pages={693-712}
}
Precision agriculture (PA) is the application of geospatial techniques and sensors (e.g., geographic information systems, remote sensing, GPS) to identify variations in the field and to deal with them using alternative strategies. In particular, high-resolution satellite imagery is now more commonly used to study these variations for crop and soil conditions. However, the availability and the often prohibitive costs of such imagery would suggest an alternative product for this particular… 
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