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Geostatistical analysis in paddy field data and implications for management


Citation

Roy, Swapan Kumar and Shibusawa, Sakae and Abdul Rahim, Anuar and Kaho, Toshikazu (2004) Geostatistical analysis in paddy field data and implications for management. Journal of the Japanese Society of Agricultural Machinery, 66 (4). pp. 88-95. ISSN 0285-2543; ESSN: 1884-6025

Abstract

Soil properties and yield were recorded in grid-spacing in a West Malaysia paddy field for the year 2000. Geostatistical analysis showed that soil properties and yield were notably correlated in space, and the range of spatially dependent yield was shorter than the soil properties. Co-kriging was used to estimate spatial pattern of yield with surrogate data (soil properties) was not successful for this field. The spatial yield map illustrated that the middle portion of the plot has lower yield (<3.5t/ha) compared to both ends in lengthwise. A management zone is suggested in the low yielding areas where soil N and soil P need to be improved for obtaining high yield (>5t/ha).


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Publisher: The Japanese Society of Agricultural Machinery and Food Engineers
Keywords: Geostatistical analysis; Soil property; Yield; Co-kriging; Management zone
Depositing User: Nabilah Mustapa
Date Deposited: 10 Oct 2016 07:49
Last Modified: 10 Oct 2016 07:49
URI: http://psasir.upm.edu.my/id/eprint/48665
Statistic Details: View Download Statistic

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