Spatial distribution of Yellow Sigatoka Leaf Spot correlated with soil fertility and plant nutrition.

This study analyzed the spatial distribution of Yellow Sigatoka Leaf Spot relative to soil fertility and plant nutritional status using geostatistics. The experimental area comprised 1.2 ha, where 27 points were georeferenced and spaced on a regular grid 18 9 18 m. The severity of Yellow Sigatoka, soil fertility and plant nutritional status were evaluated at each point. The spherical model was adjusted for all variables using restricted maximum likelihood. Kriging maps showed the highest infection rate of Sigatoka occurred in high areas of the field which had the highest concentration of sand, while the lowest disease was found in lower areas with lower silt, organic matter, total exchangeable bases, effective cation exchange capacity, base saturation, Ca andMgin soil, and foliar sulfur (S). These results may help farmers manage Yellow Sigatoka disease more effectively, with balanced fertilization and reduced fungicide application. This practice minimizes the environmental impact and cost of production while contributing to production sustainability.

Bibliographic Details

Main Authors:	FREITAS, A. S., POZZA, E. A., ALVES, M. C., COELHO, G., ROCHA, H. S., POZZA, A. A. A.
Other Authors:	A. S. FREITAS, Federal University of Lavras; E. A. POZZA, Federal University of Lavras; M. C. ALVES, Federal University of Lavras; G. COELHO, COELHO; HERMINIO SOUZA ROCHA, CNPMF; A. A. A. POZZA, Federal University of Lavras.
Format:	Separatas biblioteca
Language:	English eng
Published:	2015-07-28
Subjects:	Doença de planta, Banana, Mycosphaerella Musicola., Geostatistics, Plant nutrition.,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1020710
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