EFICIÊNCIA DO USO DA ÁGUA NA IRRIGAÇÃO DO COQUEIRO ANÃO

Authors

  • Fabio Rodrigues de Miranda Embrapa Agroindustria Tropical
  • ABEL BRUNO SILVA ROCHA Universidade Federal do Ceará
  • VICTOR BEVILAQUA GUIMARÃES Universidade Federal do Ceará
  • ELIZIO SAMPAIO DA SILVA Ducoco Litoral S.A
  • GILBERTO DE CASTRO MENDONÇA LIMA Ducoco Litoral S.A
  • MARIA MAYARA SOUSA SANTOS Ducoco Litoral S.A.

DOI:

https://doi.org/10.15809/irriga.2019v24n1p109-124

Abstract

The study aimed to evaluate the irrigation water productivity (IWP) of dwarf coconut at farm level, in two of the main green coconut producing regions of the state of Ceará. Crop evapotranspiration (ETc), water volumes applied by micro sprinkler irrigation, fruit yield and coconut water volume were monitored for 24 months. The IWP of the coconut was calculated in terms of the relationships between fruit yield (fruit plant-1) and coconut water yield (L plant-1) and irrigation water volume (m3 plant-1). At both farms, the irrigation season extended from  July to December and coconut irrigation requirements ranged from 30 to 39 m3 plant-1 year-1. In the first farm excess irrigation resulted in low IWP values, with an average of 2.7 fruits and 1.2 L of coconut water per m3 of water applied. In the other farm irrigation depths were lower than crop water demand, resulting in higher values of IWP of 5.5 fruits and 2.0 L of coconut water per m3 of irrigation water. However, the deficit irrigation caused a significant reduction in the volume of water of the fruits along the dry season.

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Published

2019-03-29

How to Cite

MIRANDA, Fabio Rodrigues de; ROCHA, ABEL BRUNO SILVA; GUIMARÃES, VICTOR BEVILAQUA; SILVA, ELIZIO SAMPAIO DA; LIMA, GILBERTO DE CASTRO MENDONÇA; SANTOS, MARIA MAYARA SOUSA. EFICIÊNCIA DO USO DA ÁGUA NA IRRIGAÇÃO DO COQUEIRO ANÃO. IRRIGA, [S. l.], v. 24, n. 1, p. 109–124, 2019. DOI: 10.15809/irriga.2019v24n1p109-124. Disponível em: http://revistas.fca.unesp.br/index.php/irriga/article/view/3567. Acesso em: 28 nov. 2024.

Issue

Vol. 24 No. 1 (2019): Irriga

Section

Artigos

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