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    Effects of different growth media to the nutrient content of primula (primula obconica) plant
    (2018) Atikmen, Nuray Çiçek; Baran, Abdullah; Kütük, Cihat; Çaycı, Gökhan; Özaytekin, H. Hüseyin; Karaca, Siyami
    Imported moss peat (IMP) and native peat (NAP) that is taken from Akgöl/Turkey were used in thegrowth medium of primula (Primula obconica) plants. Five different growth media were prepared usingIMP and NAP, and some of their basic chemical and physical properties were determined. Then, theeffects of media characteristics on nutrient contents of primula plant were evaluated. All growth mediawas found inadequate in concentration for water soluble nutrients NO 3 -N, P, K, Fe and Zn but othernutrients were acceptable levels. Bulk density (BD) of growing media was found between 0.071-0.139g cm -3 . When the ratio of NAP was increased in mixtures, BD also increased. Moreover, the growthmedia was prepared with IMP and NAP had enough aeration capacity (AC), low available water content(AWC), and very low water buffering capacity (WBC). Cation exchange capacity (CEC) values weredetermined as 83.32-105.70 me 100 g -1 . pH and EC of the media varied between 4.56-5.88 and 0.39-1.00 dS m -1 , respectively. On the other hand, when the NAP ratio was more than 75% in the mixtures,pH level was a little out of the desired limits. Organic C level was the highest in 100% IMP media. Thequality parameters and the classical growth characteristics of primula plants were not significantlydifferent across growing media. K, Mg, S and Na contents of the plants were generally at normal levels.However, significant differences were found in total Fe, Mn and Cu contents of plants. Fe amount wasenough but Mn and Cu were lower than the acceptable levels in all media. All in all, primula plantswere grown successfully in all media and reached saleable quality levels despite of the differences insome nutrient contents. It was suggested that NAP can be used as an alternative to IMP for horticulturalpurposes, such as a production of ornamentals in a greenhouse.