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ABSTRACT
Foliar application effects of two commercial organic fertilizers: Drin and Algaren on growth and flowering of two cultivars (‘Mahallati’ and ‘Dezfuli’) of tuberose (Polianthes tuberosa L.) were examined. This research was carried out in a complete randomized design with factorial arrangements including two factors (cultivars and organic fertilizers), each treatment with three replications. Drin and Algaren improved vegetative growth in tuberose and concentration of 0.4–0.6 mL L−1 Drin and concentration of 0.6 and 0.8 mL L−1 of Algaren could be recommended for foliar application on tuberose. This is the first report on using new types of organic fertilizers on ornamental bulbous plants. Further experiments are needed to clarify more the effects of these organic fertilizers on bulbous plants.