Geostatistical analysis of the spatial distribution of Rotylenchulus reniformis on cotton cultivated under crop rotation
Nenhuma Miniatura disponível
Data
2002-01-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Mylnefield Research Services
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
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.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Russian Journal of Nematology. Dundee: Mylnefield Research Services, v. 10, n. 1, p. 1-9, 2002.