Error Sources on Yield-Based Fertilizer Variable Rate Application Maps

Error Sources on Yield-Based Fertilizer Variable Rate Application Maps

Spatially-variable application of inputs to agricultural fields is dependent upon accuracy of the input variables. The effects of boundary determination, interpolation method, and GPS location errors were studied for determining a variable rate nitrogen application map based upon yield maps of a 3.6...

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Veröffentlicht in:Precision agriculture 2002, Vol.3 (1), p.81-94
Hauptverfasser: Chan, C. W, Schueller, J. K, Miller, W. M, Whitney, J. D, Wheaton, T. A, Cornell, J. A
Format: Artikel
Sprache:eng
Schlagworte:
Agricultural land
application
Citrus
edge effects
fertilizer rates
fertilizers
global positioning systems
linear models
Studies
variable rate application
yield mapping
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Zusammenfassung:Spatially-variable application of inputs to agricultural fields is dependent upon accuracy of the input variables. The effects of boundary determination, interpolation method, and GPS location errors were studied for determining a variable rate nitrogen application map based upon yield maps of a 3.6 ha Florida citrus block. A general linear model for the mean absolute error approximated the error effects.
ISSN:1385-2256
1573-1618
DOI:10.1023/A:1013378321265