2009 Sixth International Conference on Fuzzy Systems and Knowledge Discovery Definition of Management Zones of Soil Nutrients Based on Spatial Analysis in Cotton Field Tianjin, China August 14-August 16 ISBN: 978-0-7695-3735-1
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/FSKD.2009.726
The variables of organic matter, available N, available P and available K data determined in 193 topsoil (0-30cm) samples were selected as data sources. Fuzzy c-means clustering algorithm was used to delineate management zones. In order to determine the optimum fuzzy control parameters, the fuzziness performance index (FPI), c-φ combinations and the multiple regression based on external variable were used in this study. Meanwhile, the cotton yield was chosen as the external variable. The whole field was divided in four management zones. And fuzziness exponent was 1.6. The zoning statistics showed that variation coefficient of soil nutrients decreased, while the means of the soil nutrients differed sharply between management zones.
Index Terms:
Spatial analysis, Soil nutrient, Fuzzy c-mean, Management zones
Citation:
Xin Lv, Yan Chen, "Definition of Management Zones of Soil Nutrients Based on Spatial Analysis in Cotton Field," fskd, vol. 6, pp.506-510, 2009 Sixth International Conference on Fuzzy Systems and Knowledge Discovery, 2009 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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