Abstract
The present study aimed to investigate the spatial variability of soil penetration resistance (SPR) in cultivation areas of ‘BRS Princesa’ banana, to evaluate its effects on the chemical and physical attributes of the soil and to indicate localized management. The experiment was carried out in an area of cultivation ‘BRS Princesa’ banana, in which 60 georeferenced points were recorded. SPR was measured from the cone index to 0.40 m depth using an impact penetrometer. Disturbed samples were collected at depths of 0-0.05, 0.05-0.10, 0.10-0.20 and 0.20-0.40 m and the soil attributes pH, Ca, Mg, Al, Na, K, P, H + Al, SB, T Value, V%, total sand, total clay, silt, TOC, POC, MAOC and gravimetric moisture were determined. The data were subjected to descriptive statistics, Pearson’s linear correlation and geostatistical analysis. SPR values in subsurface suggest greater compaction in subsurface and the significant correlations with soil attributes indicate losses for banana plants, so localized management should be carried out. It was found that 46.7% of the total area of the banana plantation does not need to be decompacted, and localized subsoiling at a varying depth is indicated in the other regions.
Highlights
Cultivated in approximately 135 countries, banana is one of the highlights of the global fruit growing, generating about US$1.2 billion a year in exports (Food and Agriculture Organization - FAO, 2021)
The objective of this study was to investigate the spatial variability of soil penetration resistance in cultivation areas of ‘BRS Princesa’ banana, to evaluate its effects on soil attributes that may be interfering in the development of the banana plantation and to indicate localized management with subsoiling at varying depth
40% of the points did not have in subsurface soil penetration resistance (SPR) values higher than or equal to 8.0 MPa and, when performing the estimation of the unsampled sites, it was possible to infer that 46.7% of the total area of the banana plantation does not require decompaction (Region 1)
Summary
Cultivated in approximately 135 countries, banana is one of the highlights of the global fruit growing, generating about US$1.2 billion a year in exports (Food and Agriculture Organization - FAO, 2021). The objective of this study was to investigate the spatial variability of soil penetration resistance in cultivation areas of ‘BRS Princesa’ banana, to evaluate its effects on soil attributes that may be interfering in the development of the banana plantation and to indicate localized management with subsoiling at varying depth.
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