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

Under 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...

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Main Authors:	Rinza, Javier, Quiroz, Roberto A, y 4 autores más
Format:	Artículo
Language:	Inglés
Published:	Agronomy 2022
Subjects:	ESTRES DE SEQUIA DROUGHT STRESS RIEGO IRRIGATION CALENDARIO DE LOS RIEGOS IRRIGATION SCHEDULING HUELLA DE CARBONO CARBON FOOTPRINT ANALISIS DE COSTOS Y BENEFICIOS COST BENEFIT ANALYSIS Sede Central
Online Access:	https://repositorio.catie.ac.cr/handle/11554/12199

id	RepoCATIE12199
record_format	dspace
spelling	RepoCATIE121992022-12-17T17:42:23Z Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems Rinza, Javier Quiroz, Roberto A y 4 autores más ESTRES DE SEQUIA DROUGHT STRESS RIEGO IRRIGATION CALENDARIO DE LOS RIEGOS IRRIGATION SCHEDULING HUELLA DE CARBONO CARBON FOOTPRINT ANALISIS DE COSTOS Y BENEFICIOS COST BENEFIT ANALYSIS Sede Central Under 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. 2022-12-15T16:41:29Z 2022-12-15T16:41:29Z 2022 Artículo https://repositorio.catie.ac.cr/handle/11554/12199 openAccess en Agronomy https://doi.org/10.3390/agronomy12122921 13 páginas application/pdf Agronomy
institution	Centro Agronómico Tropical de Investigación y Enseñanza
collection	Repositorio CATIE
language	Inglés
topic	ESTRES DE SEQUIA DROUGHT STRESS RIEGO IRRIGATION CALENDARIO DE LOS RIEGOS IRRIGATION SCHEDULING HUELLA DE CARBONO CARBON FOOTPRINT ANALISIS DE COSTOS Y BENEFICIOS COST BENEFIT ANALYSIS Sede Central
spellingShingle	ESTRES DE SEQUIA DROUGHT STRESS RIEGO IRRIGATION CALENDARIO DE LOS RIEGOS IRRIGATION SCHEDULING HUELLA DE CARBONO CARBON FOOTPRINT ANALISIS DE COSTOS Y BENEFICIOS COST BENEFIT ANALYSIS Sede Central Rinza, Javier Quiroz, Roberto A y 4 autores más Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems
description	Under 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.
format	Artículo
author	Rinza, Javier Quiroz, Roberto A y 4 autores más
author_facet	Rinza, Javier Quiroz, Roberto A y 4 autores más
author_sort	Rinza, Javier
title	Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems
title_short	Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems
title_full	Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems
title_fullStr	Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems
title_full_unstemmed	Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems
title_sort	water saving using thermal imagery-based thresholds for timing irrigation in potatoes under drip and furrow irrigation systems
publisher	Agronomy
publishDate	2022
url	https://repositorio.catie.ac.cr/handle/11554/12199
work_keys_str_mv	AT rinzajavier watersavingusingthermalimagerybasedthresholdsfortimingirrigationinpotatoesunderdripandfurrowirrigationsystems AT quirozrobertoa watersavingusingthermalimagerybasedthresholdsfortimingirrigationinpotatoesunderdripandfurrowirrigationsystems AT y4autoresmas watersavingusingthermalimagerybasedthresholdsfortimingirrigationinpotatoesunderdripandfurrowirrigationsystems
_version_	1808117043903332352

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

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