Incidência do Amarelecimento fatal da palma de óleo em resposta à resistência a penetração do solo
Incidence of Fatal yellowing of oil palm in response to soil penetration
DOI:
https://doi.org/10.21680/2447-3359.2025v11n1ID37895Abstract
Studies on abiotic factors have gained increasing attention in research on Fatal Yellowing (FY) of oil palm (Elaeis guineensis Jacq.). The application of geostatistical techniques, especially ordinary kriging, enhances the analysis of these factors, providing a more holistic view of the study environment. This study aimed to analyze the influence of Soil Penetration Resistance (SPR) on the incidence of FY in oil palm, using geostatistical techniques. The study was conducted at Nogami Farm, in Igarapé-Açu (Pará State), in a 6.3-hectare oil palm plantation with 10.24% of affected plants. After measuring the SPR using a soil penetrometer, the data were subjected to descriptive and normality tests, followed by the construction of the semivariogram and the application of ordinary kriging, generating the thematic map of the spatial distribution of SPR. Based on the georeferenced phytosanitary inventory and the map, the SPR for each plant was determined, forming two groups: Plants with FY and Plants without FY. Given the non-normality of the data (Shapiro-Wilk test), the Mann-Whitney test was used, revealing a higher prevalence of FY in areas with higher SPR.
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