Produção Nacional
Revisado por pares
Fertility variability in a Latosol cultivated with fertigated banana
2022; UNIVERSIDADE FEDERAL DO CEARÁ; Volume: 53; Linguagem: Inglês
10.5935/1806-6690.20220045
ISSN1982-9329
AutoresBarbemile de Araújo de Oliveira, Liliane Pereira Campos, Sammy Sidney Rocha Matías, Tamires Soares da Silva, Renato Falconeres Vogado,
Tópico(s)Banana Cultivation and Research
ResumoBanana production requires strategies to assess the variability of fertigation areas since production can bereduced by consecutive cultivation in chemically-restricted soils and at different elevations. From this perspective, this studyaimed to investigate the spatial variability of soil chemical attributes and the soil carbon stock and relate these parameters tothe elevation of a banana plantation fertigated by a micro-sprinkler system. The study was conducted at the Irrigation PerimeterNupeba (Riachão das Neves/BA), in an area cultivated with the banana cultivar Prata for 18 years. In April 2017, single soilsamples were collected in an area with a minimum elevation of 440.6 m and a maximum of 445.8 m, at the depths of 0-0.20 mand 0.20-0.40 m, with a sampling grid composed of 40 georeferenced points and spaced 10 meters. The following parameterswere determined: pH, total organic carbon (COT), soil organic matter (OM), nitrogen (N), phosphorus (P), potassium (K+),calcium (Ca2+), magnesium (Mg2+), aluminum (Al3+), potential acidity (H+Al), sum of bases (SB), cation exchange capacity(CEC), base saturation (V%), and carbon stock (Est C). The data were evaluated by descriptive statistics and geostatistics andshowed normal distribution. There was spatial variability, allowing the construction of fertility maps. The maps showed that the elevationespecially infl uences the OM, COT, N, and Est C, also showing the distribution and concentration of nutrients in the soil, allowing tominimize the variability through the application of varied nutrient contents aiming at their homogeneous supply to banana plants.
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