Autoria: MOREIRA, A.; CASTRO, C. de; FAGERIA, N. K.

Resumo: In the Amazon region, there is no information on the fertilization of banana plants with boron (B). Besides this, the extractant (hot water) currently used to test B concentrations has many limitations. The aim of this work was to study the effect of B on the fruit yield and quality of banana plants of the Cavendish (AAA) sub-group, grown in dystrophic Yellow Latosol (Oxisol or Xanthic Ferralsol), in the Amazonas State, Brazil. The experimental design was completely randomized split plot in a 4 × 2 factorial scheme, composed of four B rates (0, 4, 8 and 12 kg -1) and two harvest cycles (sub-treatments), with four replicates. The availability in the soil was determined by three extractants: Mehlich 3, hot water and KCl 1.0 mol L -1. The application of B influences the fruit yield, pulp/peel ratio, pulp resistance and B content in the leaves and fruits. The KCl 1.0 mol L -1 extractant was similar to the hot water in the evaluation of available B. To obtain maximum yield, it is necessary to apply 4.1 and 6.1 kg ha -1 of B in the first and second cycles, respectively.

Ano de publicação: 2010

Tipo de publicação: Artigo de periódico

Unidade: Embrapa Amazônia Ocidental

Palavras-chave: Análise do solo, Banana, Boro, Musa sp, Pós-colheita