Publication: Geostatistical analysis of the spatial distribution of Rotylenchulus reniformis on cotton cultivated under crop rotation
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Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Mylnefield Research Services
Type
Article
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Acesso restrito
Abstract
The spatial distribution of Rotylenchulus reniformis on cotton cultivated in crop rotation with sorghum-peanut-velvetbean was studied using geostatistics. The experimental field, which had been continuously cropped with cotton for 20 years, comprised two 32 x 48 m-grids, each divided in sixty-four 4 x 6 in sampling plots. For all crops, 300 cm(3) soil samples were taken at the center of each plot at crop germination (Pi) and again at harvest (Pf), from which the numbers of nematodes were determined. The results revealed that the spatial distribution of R. reniformis was highly aggregated and with the aid of geostatistical techniques the nematode intensities were mapped and the risk areas accurately identified. Consequently, geostatistics is here considered a useful tool for planning nematode control strategies, particularly in precision agriculture.
Description
Keywords
cotton, crop rotation, Geostatistics, Rotylenchulus reniformis, spatial distribution
Language
English
Citation
Russian Journal of Nematology. Dundee: Mylnefield Research Services, v. 10, n. 1, p. 1-9, 2002.
