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https://hdl.handle.net/20.500.12955/2434
Título : | Development of an open-source thermal image processing software for improving irrigation management in potato crops (Solanum tuberosum L.) |
Autor : | Cucho Padin, Gonzalo Rinza, Javier Ninanya, Johan Loayza, Hildo Quiroz, Roberto Ramirez, David A. |
Fecha de publicación : | 14-ene-2020 |
Publicado en: | Sensors |
Resumen : | Accurate determination of plant water status is mandatory to optimize irrigation scheduling and thus maximize yield. Infrared thermography (IRT) can be used as a proxy for detecting stomatal closure as a measure of plant water stress. In this study, an open-source software (Thermal Image Processor (TIPCIP)) that includes image processing techniques such as thermal-visible image segmentation and morphological operations was developed to estimate the crop water stress index (CWSI) in potato crops. Results were compared to the CWSI derived from thermocouples where a high correlation was found (𝑟𝑃𝑒𝑎𝑟𝑠𝑜𝑛 = 0.84). To evaluate the effectiveness of the software, two experiments were implemented. TIPCIP-based canopy temperature was used to estimate CWSI throughout the growing season, in a humid environment. Two treatments with different irrigation timings were established based on CWSI thresholds: 0.4 (T2) and 0.7 (T3), and compared against a control (T1, irrigated when soil moisture achieved 70% of field capacity). As a result, T2 showed no significant reduction in fresh tuber yield (34.5 ± 3.72 and 44.3 ± 2.66 t ha−1), allowing a total water saving of 341.6 ± 63.65 and 515.7 ± 37.73 m3 ha−1 in the first and second experiment, respectively. The findings have encouraged the initiation of experiments to automate the use of the CWSI for precision irrigation using either UAVs in large settings or by adapting TIPCIP to process data from smartphone-based IRT sensors for applications in smallholder settings. |
Palabras clave : | Infrared thermography Image processing Canopy temperature Crop water stress index |
metadata.dc.subject.agrovoc: | Image processing Tratamiento de imagenes Canopy temperature depression Depresion de la temperatura del dosel Drought stress Estres de sequia Potatoes Papa |
Editorial : | MDPI |
Citación : | Cucho-Padin, G.; Rinza, J.; Ninanya, J.; Loayza, H.; Quiroz, R.; & Ramirez, D. A. (2020). Development of an open-source thermal image processing software for improving irrigation management in potato crops (Solanum tuberosum L.). Sensors, 20(2), 472. doi: 10.3390/s20020472 |
URI : | https://hdl.handle.net/20.500.12955/2434 |
metadata.dc.identifier.doi: | https://doi.org/10.3390/s20020472 |
ISSN : | 1424-8220 |
metadata.dc.subject.ocde: | https://purl.org/pe-repo/ocde/ford#4.05.00 |
Aparece en las colecciones: | Artículos producto de proyectos financiados |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Cucho_et-al_2020_irrigation_potato.pdf | Article (English) | 5,68 MB | Adobe PDF | Visualizar/Abrir |
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