Edafología. Volumen 7-2. Mayo 2000. pag 9-15.

 

EFECTO DE LA CORRECCIÓN DE LA CLOROSIS FÉRRICA EN OLIVAR CON FOSFATO DE HIERRO EN LOS PARÁMETROS DE CALIDAD DEL ACEITE DE OLIVA VIRGEN

 

María Manuela Chova1, Francisco Peña1,3, Mª del Carmen del Campillo2, Antonio Delgado4, María Angeles Díaz1.

  1. Dpto. Química Agrícola y Edafología (ETSIAM), Universidad de Córdoba, Apdo. 3048, 14080 Córdoba.
  2. Dpto. Ciencias y Recursos Agrícolas y Forestales (ETSIAM), Universidad de Córdoba, Apdo. 3048, 14080 Córdoba.
  3. CIFA, Alameda del Obispo, Departamento de Suelos y Riegos, 14080 Córdoba.
  4. Dpto. Ciencias Agroforestales, Universidad de Sevilla, Ctra. Utrera Km 1, 41013 Sevilla.

 

ABSTRACT

Iron chlorosis in olive trees reduces not only yield but also virgin olive quality. Vivianite (ferrous phosphate) applied to soil at the rate of 1 kg/olive was found effective in correcting Fe chlorosis, at least, three years after application. The objective of this work was study the effectiveness of treating chlorotic olives with vivianite in the attributes of virgin olive oil. In March 1998 three experimental fields (two with cultivar ‘Picual’ and one with cultivar ‘Manzanillo’) were conducted in a randomized block design with two treatments (control with no Fe fertilizer and vivianite). In 1999 at the harvest season olives were collected to extract oil and analyze it. Oxidative stability, chlorophyll and carotenoid content of virgin olive oil were higher in treated trees with vivianite than in control trees.

KEY WORDS: iron chlorosis, ferrous phosphate, virgin oil quality, chlorophyll, carotenoid, vivianite

 

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