The Effect of Fertilizer Application on the Bulb Yields and Floristic Traits on Some Tulips Cultivars

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International Conference on Multidisciplinary, Science, Engineering and Technology (IMESET’18 Dubai), Dubai, United Arab Emirates, 25 - 27 October 2018, pp.34-41

  • Publication Type: Conference Paper / Full Text
  • City: Dubai
  • Country: United Arab Emirates
  • Page Numbers: pp.34-41
  • Van Yüzüncü Yıl University Affiliated: Yes


The research was conducted to determine the effects of compound fertilisers together with ammonium nitrate on the flower and bulb quality of the tulip plant. For this purpose, eight different commercially available cultivars (‘Negrita’, ‘Sogetsu’, ‘Menton’, ‘Oxford Elit’, ‘Claudia’, ‘Inzell’, ‘Leen David Mark’ and ‘Queen of Night’) of Tulipa gesneriana were planted in an open field situated in Izmir, Turkey. The research, carried out between 2009 and 2010, contained two fertiliser treatments, named FT1 and FT2. FT1 consisted of a base compound fertiliser (NPK 15-15-15) being used prior to planting and ammonium nitrate (NH4NO3 33-0-0) being added during the flowering period. Similarly FT2 also consisted of a base compound fertiliser (NPK 15-15-15) being used prior to planting and, ammonium nitrate (NH4NO3 33-0-0) again being added during the flowering period. However, in this instance a second round of ammonium nitrate (NH4NO3 33-0-0) was applied after the flowering stage was completed. No fertilisers were used for the control plots. The amount of the fertiliser used in both treatments remained unchanged for the duration of the study. The split-plot randomised block design was used with 3 replicates and 2 factors (fertilizer treatment and cultivars). Accordingly, the tulip cultivars were compared for over ground sprouting time, stem height, flowering time and duration together with bulb weight and bulb circumference. The obtained data was compared statistically with that of the control plants. The most notable difference observed was bulb weight suggesting that the fertiliser treatments could be a favourable option when bulb production is the horticultural aim.