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Proceedings Paper

Precision farming through variable fertilizer application by automated detailed tracking of in-season crop properties
Author(s): Mieke Reyniers; Els Vrindts; Koenraad Dumont; Josse De Baerdemaeker
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Paper Abstract

What is lacking in precision farming at present, are more comprehensive and non-destructive methods for obtaining the data needed to prescribe variable treatments. A farmer needs to be informed in order to be efficient, and that includes having the knowledge and information products to forge a viable strategy for farming operations. Current remote sensing (satellite images) sources are too coarse in multispectral spatial resolution and too infrequent in time to allow detailed tracking of phenological stages during the growing season. In this research very detailed and automated on-the-go optical monitoring of the crop is used for detecting and managing zones with different crop yield potential on a seasonal scale. In particular, reflectance properties are used to identify and evaluate optical indicators of the nutritional status of the crop. These indicators should allow site-specific in-seasonal correction of N-application to come to optimal crop yield all over the field. Based on these indicators, site-specific fertilization is done with a variable fertilizer equipped with DGPS. At the end of the season, the crop was harvested with a combine harvester, equipped with precision farming sensors to map final crop yield. In this way final results could be evaluated and analyzed.

Paper Details

Date Published: 28 January 2002
PDF: 11 pages
Proc. SPIE 4542, Remote Sensing for Agriculture, Ecosystems, and Hydrology III, (28 January 2002);
Show Author Affiliations
Mieke Reyniers, Katholieke Univ. Leuven (Belgium)
Els Vrindts, Katholieke Univ. Leuven (Belgium)
Koenraad Dumont, Katholieke Univ. Leuven (Belgium)
Josse De Baerdemaeker, Katholieke Univ. Leuven (Belgium)

Published in SPIE Proceedings Vol. 4542:
Remote Sensing for Agriculture, Ecosystems, and Hydrology III
Manfred Owe; Guido D'Urso, Editor(s)

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