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Pesquisa Agropecuária Brasileira

Print version ISSN 0100-204XOn-line version ISSN 1678-3921


FERNANDES, Luiz Arnaldo et al. Soil fertility, plant mineral nutrition and productivity of irrigated banana for a ten-year period. Pesq. agropec. bras. [online]. 2008, vol.43, n.11, pp.1575-1581. ISSN 0100-204X.

The objective of this study was to evaluate changes in soil fertility, in plant mineral nutrition and in the productivity of banana irrigated for a ten-year period. The experiment was carried out in an Oxisol, from 1997 to 2007, in the county of Janaúba, Minas Gerais, Brazil, in a commercial banana 'Prata-Anã' (AAB) plantation, where water from a tubular deep-well - containing high salinity and medium concentration of sodium - was used for drip irrigation. The use of irrigation for ten years promotes a sharp rise in pH and in soil electrical conductivity, and causes nutrient imbalances, which limits the productivity of banana. The foliar levels of macro and micronutrientes remain above the reference values for the culture.

Keywords : Musa; soil analysis; chemical attributes; drip irrigation; tubular deep-well; salinity.

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