African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6183

Full Length Research Paper

Water use efficiency in the sugarcane cropping in different planting dates in Brazil

Tatiane Barreto de Carvalho
  • Tatiane Barreto de Carvalho
  • Programa de Pós-Graduação em Recursos Hídricos/Universidade Federal de Sergipe.Av. Marechal Rondon, s/n, Jd. Rosa Elze CEP 49100-000 São Cristóvão, SE, Brazil.
  • Google Scholar
Ronaldo Souza Resende
  • Ronaldo Souza Resende
  • Embrapa Tabuleiros Costeiros, Avenida Beira Mar, 3250, Jardins, CEP 49.025-240, Aracaju, SE, Brazil.
  • Google Scholar
Raimundo Rodrigues Gomes Filho
  • Raimundo Rodrigues Gomes Filho
  • Departamento de Engenharia Agrícola/ Universidade Federal de Sergipe. Av. Marechal Rondon, s/n, Jd. Rosa Elze CEP 49100-000 São Cristóvão, SE, Brazil.
  • Google Scholar
Julio Roberto Araujo de Amorim
  • Julio Roberto Araujo de Amorim
  • Embrapa Tabuleiros Costeiros, Avenida Beira Mar, 3250, Jardins, CEP 49.025-240, Aracaju, SE, Brazil.
  • Google Scholar
Thais Nascimento Meneses
  • Thais Nascimento Meneses
  • Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal do Recôncavo da Bahia, Rua Rui Barbosa, 710, Centro, CEP 44.380-000, Cruz das Almas, BA, Brazil.
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Jose V.T. Costa
  • Jose V.T. Costa
  • S/A Usina Coruripe Açúcar e Álcool, Fazenda Triunfo, s/n, Zona Rural, CEP 57230-000, Coruripe, AL, Brazil.
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  •  Received: 02 February 2019
  •  Accepted: 01 April 2019
  •  Published: 02 May 2019

Abstract

In global terms, irrigation is a human activity with greater demand for fresh water and strategies are needed to minimize this consumption. Therefore, the objective of this study was to establish the sugarcane planting date, which results in a greater water use efficiency, considering the summer planting of the Northeast region of Brazil. The sugarcane cultivar was RB92579, drip irrigated, and the stage of the plant was first ratoon. The experimental design was a randomized complete block design, with four replications and five treatments referring to the planting date (PD) equivalent to the months of October (PD1), November (PD2), December (PD3), 2013, January (PD4) and February (PD5), 2014. Water use efficiency was defined as the ratio of the tonnes of sugar per hectare to the volume of water entering the system, either through irrigation, total rainfall plus irrigation or effective rainfall plus irrigation. The planting dates in October and January showed the highest water use efficiency, as well as higher agro-industry productivity and higher net revenue. Planting in October maximized the use of rainfall and, in November, minimized the use of irrigation water.

Key words: phenology, effective precipitation, evapotranspiration, soluble solids content, irrigation.