[Validation of the prediction model for grain bean yield]

English. An experiment with crop beans was carried out in Montecillo, Mexico. Its objetives were to prove how vatid as far estime and space a prediction model that estabilishes a relationship between the yielding of the grain bean and soil moisture in three phenologic crop stages was. It was also intented to find out some of the functions related with soil moisture so as to evaluate the neutron moisture meter aimed to find out the soil moisture content and work out is calibration curve. Its was concluded that the studied model predicts the yieldings of grain bean for those levels of soil moisture in which it was found forther more there were found functions related with the soil moisture content; was obtained also a lineal relationship as a calibration curve for the neutron soil moisture meter for the particular site in study.

Spanish; Castilian. Se realizo un experimento en Montecillo, Mexico cuyos objetivos fueron validar en el tiempo y el espacio un modelo de prediccion que relaciona el rendimiento de grano de frijol con el contenido de humedad aprovechable del suelo en tres etapas fenologicas del cultivo; encontrar algunas funciones relacionadas con el contenido de humedad aprovechable del suelo y evaluar las medidas del aspersor de neutrones, para estimar la humedad aprovechable del suelo y encontrar su curva de calibracion. Se concluyo que el modelo estudiado predice los rendimientos de grano de frijol para aquellos niveles de humedad en que fue obtenido: se encontraron funciones relacionadas con el contenido de humedad aprovechable del suelo y se encontro una relacion lineal como curva de calibracion, para el aspersor usado para el sitio estudiado.