Bibliographic citations
Peña, R., (2024). Evapotranspiración estimada por balance de energía usando información remota y riego con alternancia de humedecimiento y secado en arrozales, Chiclayo [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/6434
Peña, R., Evapotranspiración estimada por balance de energía usando información remota y riego con alternancia de humedecimiento y secado en arrozales, Chiclayo []. PE: Universidad Nacional Agraria La Molina; 2024. https://hdl.handle.net/20.500.12996/6434
@misc{renati/1117035,
title = "Evapotranspiración estimada por balance de energía usando información remota y riego con alternancia de humedecimiento y secado en arrozales, Chiclayo",
author = "Peña Amaro, Roxana Sara",
publisher = "Universidad Nacional Agraria La Molina",
year = "2024"
}
In view of the current water shortage, it is vitally important to carry out research on new irrigation techniques that can help optimize the management of this resource in crops. Therefore, it is proposed to evaluate evapotranspiration as an indicator of water losses in rice cultivation, with the objective of achieving efficient irrigation without affecting its performance. Regarding the methodology used, different irrigation regimes were carried out, including alternating wetting and drying (AWD (AWD5, AWD10 y AWD20)) irrigation and continuous flooding irrigation (CF). During the different phenological stages, vegetation indices were measured in the field and thermal and multispectral images were captured with an unmanned aerial vehicle (UAV), performing a total of 13 monitoring sessions. As a result, average values of 5,24 ± 0,28 and 5,45 ± 0,31 mm d-1 were obtained for crop evapotranspiration (ETC) in the AWD and CF irrigation systems, respectively. Requiring an average irrigation value of 14363.3 m3 ha-1 for AWD and an irrigation value of 19970 m3 ha-1 for CF. This represents a savings in irrigation water between 27.54 to 28.49% and a reduction in yield between 2.07 to 15.41%. Which translates into an increase in water use efficiency between 18,30 to 36,38% for AWD irrigation technology. Since these results provide important information to improve irrigation management, it is advisable to use the proposed model to minimize the negative effect on crop productivity.
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