o:3204 Use of controlled-release mineral fertilizer in production of pot grown Levisticum officinale L. en Controlled-release mineral fertilizers (CRMF) have been developed and designed in order to improve the efficiency of fertilizers. Better efficiency in use of CRMF compared to conventional mineral fertilizers is mostly reflected in: decrease of chemical immobilization in soils which blocks uptake of nutrients by plants; lowering a fertilizer application frequency and rinsing out of nutrients in soil which consequently reduces a damaging effect on the environment. The aim of this study was to test if an application of CRMF will result in the improvement in development of aboveground biomass of pot grown lovage. The seedlings of lovage were produced in laboratory conditions, in containers placed inside a polyethylene tent (Grow Box), under the artificial lighting. With the development of the first true leaves, seedlings were transplanted into pots and submitted to treatments: CRMF- Osmocot Exact in formulation (NPK 15:9:12 +2MgO+TE), in which is gave 0,45 g N, 0,27 g P2O5 and 0,36 g K2O per L of substrate (pot) and without adding fertilizer (control). After 60 days of growth in the non-heated greenhouse, for 30 plants of each treatment, the absolute dry mass of aboveground biomass (g/plant), number of branches and plant height (cm), were recorded. The highest yield of the aboveground biomass and the highest number of branches were obtained in CRMF (5.17± 0.72g and 6 to 13 branches/plant) compared to control (1.93±0.29g and 5 to 9 branches/plant), respectively. Regarding the plant height, better effect was achieved by CRMF (41.31± 3.43 cm) compared to control (29.37± 2.40 cm). Obtained results have shown positive effects of CRMF on development of aboveground biomass of pot grown lovage. lovage, medicinal plant, controlled-release fertilizer 1552100 978-99976-987-3-5 2023-11-09T08:28:01.073Z 44 no 46 Snežana Mrđan Institut za proučavanje lekovitog bilja "Dr Josif Pančić" 0000-0002-9419-5560 46 Dragoja Radanović 46 Vladimir Filipović Institut za proučavanje lekovitotg bilja "Dr Josif Pančić" 0000-0002-7081-8217 46 Stefan Gordanić Institut za proučavanje lekovitog bilja "Dr Josif Pančić" 0000-0001-7940-9543 46 Željana Prijić Institut za proučavanje lekovitog bilja "Dr Josif Pančić" 0000-0001-7449-7839 46 Petar Batinić Institut za proučavanje lekovitog bilja "Dr Josif Pančić" 0000-0001-5647-2590 46 Ana Dragumilo Institut za proučavanje lekovitog bilja "Dr Josif Pančić" 0000-0003-1569-2751 46 Tatjana Marković Institut za proučavanje lekovitog bilja "Dr Josif Pančić" 0000-0003-1328-6223 application/pdf 1139294 https://unilib.phaidrabg.rs/o:3204 no yes 1 70 92000004 71A10 BOOK OF PROCEEDINGS XIII International Scientific Agriculture Symposium “AGROSYM 2022” 160 165 2022