African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6693

Full Length Research Paper

Chlorophyll and macronutrients content in leaf tissue of Musa sp ‘Prata-Anã’ under fertigation

Alberto Soares de Melo
  • Alberto Soares de Melo
  • Paraíba State University, Av. das Baraúnas, 351, Bodocongó, CEP 58109-753, Campina Grande-PB, Brazil
  • Google Scholar
Carlos Dias Silva Junior
  • Carlos Dias Silva Junior
  • Department of Agricultural Engineering, Sergipe Federal University, Av. Marechal Cândido Rondon, Jardim Rosa Elze, CEP
  • Google Scholar
Pedro Dantas Fernandes
  • Pedro Dantas Fernandes
  • Paraíba State University, Av. das Baraúnas, 351, Bodocongó, CEP 58109-753, Campina Grande-PB, Brazil
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Marcos Eric Barbosa Brito
  • Marcos Eric Barbosa Brito
  • Campina Grande Federal University, Academic Unit of Agricultural Sciences, Av. Jairo Vieira de Feitosa, Pereiros, CEP 58840-000, Pombal-PB, Brazil.
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Lafayette Franco Sobral
  • Lafayette Franco Sobral
  • EMBRAPA, Agricultural Research Center of Tabuleiros Costeiros, Av. Beira Mar, 3250, Jardins, CEP 49025-040, Aracaju-SE, Brazil.
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anivan Fernandes Suassuna
  • anivan Fernandes Suassuna
  • Paraíba State University, Av. das Baraúnas, 351, Bodocongó, CEP 58109-753, Campina Grande-PB, Brazil
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Pedro Roberto Almeida Viégas
  • Pedro Roberto Almeida Viégas
  • Department of Agricultural Engineering, Sergipe Federal University, Av. Marechal Cândido Rondon, Jardim Rosa Elze, CEP
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Rener Luciano de Souza Ferraz
  • Rener Luciano de Souza Ferraz
  • Department of Agronomy, Paulistan State University Júlio de Mesquita, CEP 14884-900, Jaboticabal, SP, Brazil.
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  •  Received: 12 March 2014
  •  Accepted: 15 May 2014
  •  Published: 31 May 2014

Abstract

The banana (Musa sp.) crop is notable for its social and economic importance in tropical and subtropical regions of world. In Brazil, despite being a main banana producer, its production is considered low, mainly due to water and nutrient shortages in soils. This fact motivated this study; so, it aimed to evaluate chlorophyll and macronutrients content in leaf tissue of banana ‘Prata-Anã’ (AAB) under fertigation with doses of nitrogen and potassium. It were evaluated chlorophyll a, b and total and leaf contents of nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg) and calcium (Ca) in banana trees grown in an Ultisol on the coastal tablelands of Sergipe State, Brazil. The experiment was conducted in the field, in a 42 factorial with four randomized blocks. Two factors with four levels were tested: nitrogen (0; 350; 700 and 1050, in kg ha-1 of N, as urea) and potassium (0; 400; 800 and 1200, in kg ha-1 of K2O, as potassium chloride). Increasing N applied through irrigation enhances leaf nitrogen until approximately 631.08 kg ha-1 of N, while chlorophyll total remains constant after 250 kg ha-1. Phosphorus and calcium are increased due to high doses of N, however, magnesium and potassium in the leaves are reduced. High doses of K increase leaf content of K until estimated dose of 698.07 kg ha-1 and reduce calcium and magnesium of banana ‘Prata-Anã’.
 
Key words: Musa sp., mineral fertilizer, nutrition, photosynthetic pigments, nutrient splitting.