Modelización del crecimiento de lechuga "Little Gem" para su aplicación en gestión de riego
- D. Escarabajal-Henarejos
- José Miguel Molina Martínez
- E. Truque-Rodríguez
- L. Ruiz-Peñalver
- A. Ruiz-Canales
- Ayuga Téllez, Francisco (coord.)
- Masaguer Rodríguez, Alberto (coord.)
- Mariscal Sancho, Ignacio (coord.)
- Villarroel Robinson, Morris (coord.)
- Ruiz-Altisent, Margarita (coord.)
- Riquelme Ballesteros, Fernando (coord.)
- Correa Hernando, Eva Cristina (coord.)
Publisher: Fundación General de la Universidad Politécnica de Madrid
ISBN: 84-695-9055-3, 978-84-695-9055-3
Year of publication: 2014
Pages: 797-802
Congress: Congreso Ibérico de Agroingeniería y Ciencias Hortícolas (7. 2013. Madrid)
Type: Conference paper
Abstract
Simulation models employed in agronomy describes crop growth dynamics relating to the environment, and allow the determination of variables able to describe the culture state at different temporal stages, for example, development stage, root depth, ground cover, etc. At the same time, variables obtained from these models are used in determining the water requirements, prior to irrigation scheduling. In many cases, the models used not correspond to crop management techniques and climate zone in which they are applied, using approximate models that provide variables that differs substantially from the actual values, and therefore requires a calibration. In the present study a modeling of root depth and height of lettuce ‘Little Gem’ cultivar has been made, being a function of the ground cover, easily determinable by digital photography based methodologies, obtaining satisfactory results. Furthermore, from the crop height and ground cover crop coefficients required in the estimation methodology evapotranspiration by FAO-56 were determined. Derivated models can be applied in future crops in order to adjust estimated water needs to the real needs.