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vol.25 issue1Accumulation of N, K, Ca, Mg and S in dry matter of the aerial part of dwarf cashew influenced by increasing levels of organic matterEvaluation of the nutricional status and development of banana cultivar "prata anã" (Musa spp.) in relation to nitrogen fertilization author indexsubject indexarticles search
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Revista Brasileira de Fruticultura

Print version ISSN 0100-2945On-line version ISSN 1806-9967


SILVA, José Tadeu Alves da; BORGES, Ana Lúcia; CARVALHO, Janice Guedes  and  DAMASCENO, José Ermelino Alves. Fertilization with nitrogen and potassium on irrigated banana crop cv. 'prata-anã', in three cycles. Rev. Bras. Frutic. [online]. 2003, vol.25, n.1, pp.152-155. ISSN 1806-9967.

Nitrogen, after potassium, is the chemical element most required by banana crop. This work evaluated the effect of nitrogen and potassium fertilization on irrigated banana crop (Prata-Anã, AAB) yield. Five rates of N (0 , 200 , 400 , 800 and 1600 kg ha-1 year-1) and five rates of K2O (0; 200; 400; 800 and 1600 kg ha-1 year-1), in a (5x5) factorial design were studied. The data were obtained during three yield cycles (second, third and four cycles), on an eutrofic Red-Yellow latosol, sandy-clay, in the North of Minas Gerais State, Brazil. The content of Mn have increased in the leaves with the increased amount of N applied in the soil. The banana yield reduced with the rise of the Mn content in the leaves, on the second and third cycle. The maximum yield was obtained with the application of 962,5 kg of K2O ha-1year-1, on the fourth cycle. No interaction between N and K was found.

Keywords : banana; nutrition; fertilization.

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