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Agronomía Mesoamericana

On-line version ISSN 2215-3608Print version ISSN 1659-1321


QUESADA-ROLDAN, Gustavo  and  BERTSCH-HERNANDEZ, Floria. Fertigation and yield of tomato hybrids growing in a greenhouse. Agron. Mesoam [online]. 2012, vol.23, n.1, pp.117-128. ISSN 2215-3608.

The objective of this work was to evaluate the response of tomato hybrids to three  fertilization-watering programs  based  on  recommendations  of  dose  compiled from the  literature (LIT), curves of absorption (CA), and adjustments of information previously analized (AJU). From October 2008 to March 2009, two  tomato hybrids (FB-17 and DRD-8108) were grown  in the greenhouse of the Fabio Baudrit Moreno Agricultural Research Station in Alajuela, Costa  Rica.  No significant statistical differences were  found  in the commercial performance in none of  the three fertilization treatments; significant differences among the hybrids were observed. The hybrid DRD-8108 surpassed FB-17. FB-17 hybrid yield for treatment LIT was 69.3 t/ha and 5.87  kg/plant; in the CA treatment was 75.5 t/ha and 6.39 kg/plant; and in the AJU treatment 76.4 t/ha and 6.62 kg/plant, respectively. For the DRD-8108  hybrid, the LIT treatment yield was 85.4 t/ha and 8.55 kg/plant; in the CA treatment was 86.7 t/ha and 7.45 kg/plant; finally in the AJU treatment yield was  83.9 t/ha and 7.38 kg/plant. The high internal greenhouse temperature was the main limiting factor that constrained yield.

Keywords : Fertilization; vegetable; protected environment.

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