TY - JOUR 
A1 - Miras Avalos, José Manuel
AU - Rubio Asensio, José Salvador
AU - Ramírez Cuesta, Juan Miguel
AU - Maestre Valero, José Francisco
AU - Intrigliolo Molina, Diego Sebastiano
T1 - Irrigation-Advisor-A Decision Support System for Irrigation of Vegetable Crops
Y1 - 2019
SN - 2073-4441
UR - http://hdl.handle.net/10317/9384
AB - Climate change will intensify water scarcity, and therefore irrigation must be adapted to save water. Operational tools that provide watering recommendations to end-users are needed. This work presents a new tool, Irrigation-Advisor (IA), which is based on weather forecasts and is able to separately determine soil evaporation and crop transpiration, and thus is adaptable to a broad
range of agricultural situations. By calculating several statistical indicators, IA was tested against the FAO-56 crop evapotranspiration (ETcFAO) methodology using local crop coefficients. Additionally, IA recommendations were compared with current standard practices by experienced farmers (F). Six field experiments with four widely cultivated species (endive, lettuce, muskmelon and potato) were performed in Southeast Spain. Irrigation water applied, crop yield, aboveground biomass and
water productivity were determined. Crop water needs underestimations (5%–20%) were detected when comparing IA against ETcFAO, although the index of agreement proved reasonable adjustments. The IA recommendations led to water savings up to 13% when compared to F, except for lettuce, with a 31% surplus in irrigation when using IA. Crop yield was not compromised and water productivity was increased by IA. Therefore, IA mimicked the farmers0 irrigation strategies fairly well without deploying sensors on-site. Nevertheless, improvements are needed for increasing the accuracy of IA estimations.
KW - Edafología y Química Agrícola
KW - Ingeniería del Terreno
KW - Evapotranspiration
KW - Modeling
KW - Soil water balance
KW - Water-use efficiency
KW - Weather forecasts
KW - 2511 Ciencias del Suelo (Edafología)
KW - 2508.02 Evaporación
KW - 3103.02 Hibridación de Cultivos
LA - eng
PB - MDPI
ER -