Dosis de N sobre reflectancia espectral, contenido de clorofila y nutrientes en plantas de gerbera

ABSTRACT In soilless crop, nutritional management must ensure the concentration and balance of nutrients, in order to obtain high productivity and quality, while fine adjustment of fertilization contributes to reduce environmental impact. Under the assumption that (1) an optimum level of N can be determined for gerbera, which provides the maximum potential productivity, (2) that the N level can be detected through a nondestructive technique, such as crop reflectance, and (3) that variations occur according to season, the objectives of this study were 1) to determine the effect of different dos...