African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6860

Full Length Research Paper

Productivity of fertirrigated sugarcane in subsurface drip irrigation system

Renato Campos de Oliveira
  • Renato Campos de Oliveira
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO Brazil.
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Fernando Nobre Cunha
  • Fernando Nobre Cunha
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO Brazil.
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Nelmício Furtado da Silva
  • Nelmício Furtado da Silva
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO Brazil.
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Marconi Batista Teixeira
  • Marconi Batista Teixeira
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO Brazil.
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Frederico Antonio Loureiro Soares
  • Frederico Antonio Loureiro Soares
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO Brazil.
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Clarice Aparecida Megguer
  • Clarice Aparecida Megguer
  • Federal Institute of Goiás (Instituto Federal Goiano – IF Goiano), Campus Rio Verde, Goiás GO Brazil.
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  •  Accepted: 20 February 2014
  •  Published: 14 March 2014

Abstract

The productivity and fresh phytomass index of sugarcane cultivated at different water replacement levels using a subsurface drip system, with or without N, were analyzed. Sugarcane plants underwent five water replacement levels (100, 75, 50, 25 and 0%), with or without N application (100 kg ha-1) in urea. At harvest-time, stalk productivity, water-use efficiency, gross sugar yield, gross alcohol yield, fresh phytomass of tip, dry leaf phytomass, total fresh phytomass and the ratio between the fresh phytomass of tip and stalk productivity were evaluated. A 100% water replacement increased stalk productivity by 40% compared with drought-stricken area management (water replacement 0%) and high efficiency in the exploitation of photoassimilated in stalk production. N-urea application increased by 14% the gross sugar and alcohol yield. Water deficit (water replacement 0%) caused severe decrease (26%) in total phytomass of the sugarcane plant´s aerial section.

 

Key words: Saccharum officinalis, water replacement, irrigation, nitrogen, water deficit.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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