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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Spatial distribution of Yellow Sigatoka Leaf Spot correlated with soil fertility and plant nutrition.
Autores:  FREITAS, A. S.
POZZA, E. A.
ALVES, M. C.
COELHO, G.
ROCHA, H. S.
POZZA, A. A. A.
Data:  2015-07-28
Ano:  2015
Palavras-chave:  Doença de planta
Banana
Mycosphaerella Musicola.
Geostatistics
Plant nutrition.
Resumo:  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.
Tipo:  Separatas
Idioma:  Inglês
Identificador:  Precision Agriculture, 16 July, 2015.

1385-2256

http://www.alice.cnptia.embrapa.br/alice/handle/doc/1020710

10.1007/s11119-015-9409-6
Formato:  14p.
Direitos:  openAccess
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