Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems

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dc.creatorRinza, J.
dc.creatorRamírez, D.
dc.creatorNinanya, J.
dc.creatorMendiburu, F. de
dc.creatorGarcía, J.
dc.creatorQuiróz, R.
dc.date2022-11
dc.date2022-11-23T16:18:17Z
dc.date2022-11-23T16:18:17Z
dc.date.accessioned2026-06-27T17:58:25Z
dc.descriptionUnder the current water crisis in agriculture, irrigation methods for saving and conserving water are necessary. However, these methods must guarantee an appropriate yield with a concomitant economic benefit and a reduced environmental impact. In this study, two irrigation thresholds for irrigation timing (IT) based on thermal imagery were analyzed with the UNICA potato variety in three trials under drip (DI) and furrow (FI) irrigation during 2017–2018 in Lima, Peru. The control (T1) remained at >70% of soil field capacity. For other treatments, thresholds were defined based on stomatal conductance at light saturation (T2: 0.15 and T3: 0.05 mol H2O m􀀀2 s􀀀1) and crop water stress index (T2: 0.4 and T3: 0.6) based on canopy temperature. An integrated index (IIN) was established for the valuation of treatments using the criteria of high fresh tuber yield (FTY) and a low total amount of irrigated water, production cost (PC), and total C emissions (TE) and using criteria of a score. FI-T2 (0.69–0.72) and DI-T3 (0.19–0.29) showed the highest and lowest IIN value, respectively. FTY in T2 was not significantly reduced under FI, resulting in a lower PC regarding DI–T2 and emphasizing the usefulness of thermal imagery in determining watering schedules in potatoes under furrow irrigation systems.
dc.identifierhttps://hdl.handle.net/10568/125659
dc.identifier.urihttp://hdl.handle.net/123456789/151132
dc.languageen
dc.publisherMDPI
dc.rightsOpen Access
dc.sourceRinza, J.; Ramírez, D.A.; Ninanya, J.; de Mendiburu, F.; García, J.; Quiroz, R. 2022. Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems. Agronomy. ISSN 2073-4395. 12, 2921.
dc.subjectcrop water use
dc.subjectirrigation scheduling
dc.subjectcarbon footprint
dc.subjectpotatoes
dc.subjectwater conservation
dc.titleWater Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems
dc.typeJournal Article

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