Validating integrative nutrient diagnostic norms for greenhouse cut-roses
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URI: http://hdl.handle.net/10835/15387
DOI: https://doi.org/10.1016/j.scienta.2019.109094
DOI: https://doi.org/10.1016/j.scienta.2019.109094
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Franco-Hermida, John J.; Quintero Castellanos, María Fernanda; Guzmán Carrasco, Ana Isabel; Guzmán Palomino, José Miguel; Cabrera, Raul I.Fecha
2020-01-07Resumen
Efforts to optimize fertilizer use efficiency in intensively managed greenhouse rose crops led to studies to establish and validate norms for their integrated nutrient diagnosis. The present study experimentally validates the practical usefulness of previously established DRIS (Diagnosis and Recommendation Integrated System) and CND (Compositional Nutrient Diagnosis) norms for soil-grown roses in the Bogota Plateau of Colombia. Corrective fertilization treatments, based on a control fertigation solution, were designed based on preliminary diagnosis by DRIS methodology, and applied over two growth and flowering flushes in an experimental plot within a commercial rose crop. These integrative nutrient diagnoses methods detected microelement imbalances
in rose leaf tissues, including excesses of iron (Fe) and deficiencies of zinc (Zn), copper (Cu) and manganese (Mn). Conventional soil and foliar analyses had some contrasting interpretation diagnoses on these nutrients. Implementation of c...
Palabra/s clave
Agronomía
DRIS
Nutritional Diagnosis
Cut-flowers
Fertigation
Integrative nutrient diagnosis
Norms
Rosa
Validation