Effects of different NPK fertilizers on the growth and development of zinnia (Zinnia elegans (jasq.)
2015
Mladenović, Emina (Faculty of Agriculture, Novi Sad (Serbia)) | Čukanović, Jelena (Faculty of Agriculture, Novi Sad (Serbia)) | Ljubojević, Mirjana (Faculty of Agriculture, Novi Sad (Serbia)) | Lakić, Ana (Faculty of Agriculture, Novi Sad (Serbia)) | Hajnal, Danijela (Faculty of Agriculture, Novi Sad (Serbia))
This research was conducted in order to determine optimal combination of NPK fertilizer to obtain high yield, good quality of flowers and high decorativeness. The experiment was set at the research field Rimski Šančevi, Faculty of Agriculture, Novi Sad in 2014 year. The seedlings were produced in the greenhouse and the young plants were implemented in the open field. The experiment included three treatments with 30 replicate plants per treatment. Four treatments were applied: 'Ferticare' 14-11-25 with microelements (S, Mg, Fe, Mn, B, Cu, Zn, Mo, Co), 'Kristalon Special'™ 18 + 18 + 18 (+ 3Mg), 'Kristalon Brown™' 3 + 11 + 38 (+4 Mg) and control. Fertilizers were applied over the soil in certain concentrations. During the plant development following characteristics of zinnia have been monitored: plant height (cm), number of lateral shoots, number of leaves per plant, leaf length (cm), number of flowers per plant and dry and fresh root weight (g). It was observed that plants treated with fertilizer 'Ferticare' showed highest number of lateral shoots, highest foliar weight and a maximum root system weight. Plants treated with 'Kristalon Special' had the largest number of flowers per plant. Plants treated with 'Kristalon Brown' achieved greatest values of plant height. Fertilizer 'Ferticare' showed the best effects on plant decorativeness.
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