Bibliographic citations
Gago, F., (2021). Efecto de la temperatura del aire en los estados fenológicos del arroz bajo riego por goteo empleando el modelo Aquacrop [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/5228
Gago, F., Efecto de la temperatura del aire en los estados fenológicos del arroz bajo riego por goteo empleando el modelo Aquacrop []. PE: Universidad Nacional Agraria La Molina; 2021. https://hdl.handle.net/20.500.12996/5228
@misc{renati/1113984,
title = "Efecto de la temperatura del aire en los estados fenológicos del arroz bajo riego por goteo empleando el modelo Aquacrop",
author = "Gago Tolentino, Frank Luigui",
publisher = "Universidad Nacional Agraria La Molina",
year = "2021"
}
The study was carried out in the Experimental Irrigation Area (AER) of the National Agrarian University La Molina, Lima - Peru, from January to August 2017. This research addressed the issue of the effect of air temperature in the states phenological of rice, because the production areas of the crop are vulnerable to climatic variability that is reflected in changes in temperature; This variation is accentuated with the El Niño phenomenon and the pollution of the cities. The main objective was to evaluate the effect of temperature in the phenological states, applying the calibration of the AquaCrop model under a drip irrigation system, and the use of the degree days of development (GDD), being a unit of measurement that quantifies the plant energy gain, to estimate growth more accurately. A methodology with a quantitative approach, analytical scope and conclusive design was proposed. For the calibration of the AquaCrop software, the model parameters were calculated with the help of the information collected in the field. All these previous steps and the field work carried out, allowed us to evaluate the physical changes that were visualized during the vegetative period of the crop; these were associated with the phenological states of the rice, emphasizing the state of flowering at the time of fertilization of the grain. , whose process resulted from the production and yield of the crop. According to the analysis of the results, it is concluded that one of the calibrated parameters related to the air temperature, which affects flowering until the maturation of the crop grain, is represented with a thermal stress parameter (Kspol), the which was expressed by a stress coefficient varying from zero to one that obeys a temperature range identified interactively by the AquaCrop model that affects the generation of biomass. Likewise, it showed that the production of fertile grain will be significantly affected if the plant is exposed to low temperatures for a long time.
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