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...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/125659 |
| _version_ | 1855523874665398272 |
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| author | Rinza, J. Ramírez, D. Ninanya, J. Mendiburu, F. de García, J. Quiróz, R. |
| author_browse | García, J. Mendiburu, F. de Ninanya, J. Quiróz, R. Ramírez, D. Rinza, J. |
| author_facet | Rinza, J. Ramírez, D. Ninanya, J. Mendiburu, F. de García, J. Quiróz, R. |
| author_sort | Rinza, J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| 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 m2 s1) 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 | Journal Article |
| id | CGSpace125659 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1256592025-12-08T10:29:22Z Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems Rinza, J. Ramírez, D. Ninanya, J. Mendiburu, F. de García, J. Quiróz, R. crop water use irrigation scheduling carbon footprint potatoes water conservation 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 m2 s1) 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. 2022-11 2022-11-23T16:18:17Z 2022-11-23T16:18:17Z Journal Article https://hdl.handle.net/10568/125659 en Open Access MDPI Rinza, 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. |
| spellingShingle | crop water use irrigation scheduling carbon footprint potatoes water conservation Rinza, J. Ramírez, D. Ninanya, J. Mendiburu, F. de García, J. Quiróz, R. Water Saving Using Thermal Imagery-Based Thresholds for Timing Irrigation in Potatoes under Drip and Furrow Irrigation Systems |
| title | 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_short | 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 |
| topic | crop water use irrigation scheduling carbon footprint potatoes water conservation |
| url | https://hdl.handle.net/10568/125659 |
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