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Article

Avocado cv. Hass Needs Water Irrigation in Tropical Precipitation Regime: Evidence from Colombia

1
Escuela EIDENAR, Facultad de Ingeniería, Universidad del Valle, Calle 13 No. 100-00, Cali 760032, Colombia
2
Facultad de Ciencias Agropecuarias, Universidad Nacional de Colombia, Sede Palmira 763533, Valle del Cauca, Colombia
3
Departamento de Agronomía, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Sede Bogotá 111321, Colombia
*
Author to whom correspondence should be addressed.
Academic Editor: Steven G. Pueppke
Water 2021, 13(14), 1942; https://doi.org/10.3390/w13141942
Received: 26 May 2021 / Revised: 9 July 2021 / Accepted: 11 July 2021 / Published: 14 July 2021
(This article belongs to the Special Issue Feature Papers of Water, Agriculture and Aquaculture)
The primary natural source of water for the Hass avocado crop in the tropics is precipitation. However, this is insufficient to provide most crops’ water requirements due to the spatial and temporal variability. This study aims to demonstrate that Hass avocado requires irrigation in Colombia, and this is done by analyzing the dynamics of local precipitation regimes and the influence of Intertropical Convergence Zone phenomena (ITCZ) on the irrigation requirement (IR). This study was carried out in Colombia’s current and potential Hass avocado production zones (PPA) by computing and mapping the monthly IR, and classifying months found to be in deficit and excess. The influence of ITCZ on IR by performing a metric relevance analysis on weights of optimized Artificial Neural Networks was computed. The water deficit map illustrates a 99.8% of PPA requires water irrigation at least one month a year. The movement of ITCZ toward latitudes far to those where PPA is located between May to September decreases precipitation and consequently increases the IR area of Hass avocado. Water deficit visualization maps could become a novel and powerful tool for Colombian farmers when scheduling irrigation in those months and periods identified in these maps. View Full-Text
Keywords: irrigation requirement; climatic variability; Intertropical Convergence Zone phenomena (ITCZ); Artificial Neural Networks; water deficit map irrigation requirement; climatic variability; Intertropical Convergence Zone phenomena (ITCZ); Artificial Neural Networks; water deficit map
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MDPI and ACS Style

Erazo-Mesa, E.; Ramírez-Gil, J.G.; Sánchez, A.E. Avocado cv. Hass Needs Water Irrigation in Tropical Precipitation Regime: Evidence from Colombia. Water 2021, 13, 1942. https://doi.org/10.3390/w13141942

AMA Style

Erazo-Mesa E, Ramírez-Gil JG, Sánchez AE. Avocado cv. Hass Needs Water Irrigation in Tropical Precipitation Regime: Evidence from Colombia. Water. 2021; 13(14):1942. https://doi.org/10.3390/w13141942

Chicago/Turabian Style

Erazo-Mesa, Edwin, Joaquín G. Ramírez-Gil, and Andrés E. Sánchez 2021. "Avocado cv. Hass Needs Water Irrigation in Tropical Precipitation Regime: Evidence from Colombia" Water 13, no. 14: 1942. https://doi.org/10.3390/w13141942

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