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The paper studies the effect of applying different doses of slow disintegrating fertilizer 'Scotts' ( Osmocote Exact ) of the formulation 15:9:9:MgO + Me to the quality of impatiens seedlings. The impatiens' seedlings were produced in poly-styrene containers ( speedling system ) and poly-propylene pots ( pot system ). During the seedlings' production, the fertilizer was added in different doses (0, 1, 2, 3, and 4g/l ). The obtained results have shown that the dose of 4 g/l of fertilizer significantly influences on the qualitative features of the impatiens' seedlings., U radu je ispitivan uticaj različitih doza spororazlagajućeg đubriva Scotts (Osmocote Exact) formulacije 15:9:9:MgO + Me na kvalitet rasada impatiensa. Rasad impatiensa je proizveden u polistirenskim kontejnerima (speedling system) i polipropilenskim saksijama (pot system). U toku proizvodnje rasada dodavano je đubrivo u dozama (0, 1, 2, 3, i 4g/l ). Dobijeni rezultati ukazuju da doza đubriva od 4g/l supstrata značajno utiče na kvalitativne osobine rasada impatiensa jove.

The paper investigates the effect of applying different rate of slow disintegrating fertilizer Scotts (Osmocot Exact) with the formula 15:9:9:MgO+Me to the quality of seedlings of marigold and scarlet sage. The marigold and scarlet sage seedlings were grown in poly-propylene containers (speedling system) and poly-propylene pots (pot system). Slow disintegrating fertilizer rate have been applied to the seedlings in the course of their growing (0, 1, 2, 3, i 4 g/l). The obtained data show that the 4g/l substrate rate of slow disintegrating fertilizer has significant effects on the studied parameters of seedlings quality of studied species., U radu je ispitivan uticaj različitih doza spororazlagajućeg đubriva Scotts (Osmocot Exact) formulacije 15:9:9:MgO+Me na kvalitet rasada kadifice i ukrasne žalfije. Rasad kadifice i ukrasne žalfije je proizveden u polipropilenskim kontejnerima (speedling system) i polipropilenskim saksijama (pot system). U toku proizvodnje rasada dodavano je spororazlagajuće đubrivo u dozama (0, 1, 2, 3, i 4 g/l). Dobijeni rezultati ukazuju da doza spororazlagajućeg đubriva od 4g/l supstrata značajno utiče na ispitivane parametre kvaliteta rasada ispitivanih vrsta.

The work has examined the influence of slow disintegrating fertilizer rates of Scotts (Osmocote Exact) formulation 15:9:9:MgO + Me on quality of Gazania rigens L. seedlings. The seedlings of Gazania rigens L. was produced in polystyrene containers (speedling system) and polypropylene pots (pot system). During the production of seedlings the fertilizer has been applied in rates (0, 1, 2, 3, and 4g/l). The results show that the fertilizer rate of substrata 4g/l influences the qualitative properties of Gazania rigens L. seedlings., U radu je ispitivan uticaj različitih doza spororazlagajućih đubriva Scotts (Osmocote Exact) formulacije 15:9:9:MgO + Me na kvalitet rasada gazanije. Rasad gazanije je proizveden u polistirenskim kontejnerima (speedling system) i polipropilenskim saksijama (pot system). U toku proizvodnje rasada dodavano je đubrivo u dozama (0, 1, 2, 3, i 4g/l). Dobijeni rezultati ukazuju da doza đubriva od 4g/l supstrata značajno utiče na kvalitativne osobine rasada gazanije.

The present research in the study of the effect of application of natural bio-stimulants and slow-release fertilizers on commercial production of begonia (Begonia semperflorens) saplings. Two types of containers were deployed in the production process, whereas the results of the experimental research showed that the application of both slow-release fertilizers and natural bio-stimulants in further production is only justifiable in cases when large volume containers are deployed in commercial production of sapling. The application of those significantly influences the increase in stalk weight, number of sprouts and number of blossoms. The application of natural bio-stimulants may be justifiable with the saplings that have previously been produced in smaller containers, since they have auspicious effect upon development of the root, i.e. upon its length., U radu je ispitivan uticaj primene prirodnih biostimulatora i spororazlagajućih đubriva u komercijalnoj proizvodnji rasada begonija (Begonia semperflorens ).Za proizvodnju rasada korišćeno je dva tipa kontejnera a dobijeni rezultati eksperimentalnih istraživanja pokazali su da je primena i spororazlagajućih đubriva i prirodnih biostimulatora u toku dalje proizvodnje , opravdana samo u slučaju kada se za proizvodnju rasada koriste veći kontejnerima. Njihovom primenom utiče se značajno na povećanje nadzemne mase, broja pupoljaka i broja cvetova. Primena prirodnih biostimulatora može biti opravdana i kod proizvodnje rasada u manjim kontejnerima jer povoljno utiče na razvoj korena tj. njegovu dužinu.

In the present work the effect of natural biostimulators and different doses of slow disintegrating fertilizer on the quality of rosemary seedlings was studied. Rosemary seedlings were produced in containers, according to the 'speedling system'. During the production of seedlings natural biostimulators Megafol and Viva and microbiological fertilizer Slavol were added. The applied biostimulators made a significant effect on the quality of rosemary seedlings. Different doses of the slow disintegrating fertilizer Scotts (Osmocote Extact) were applied (0, 1, 2, 3 and 4 g/l), which also produced a significant influence., U radu je ispitivan uticaj prirodnih biostimulatora i različitih doza spororazlagajućeg đubriva na kvalitet rasada ruzmarina. Rasad ruzmarina je proizveden u kontejnerima po 'speedling sistemu'. Tokom proizvodnje rasada dodavani su prirodni biostimulatori Megafol i Viva i mikrobiološko đubrivo Slavol. Upotrebljeni biostimulatori su ostvarili značajan efekat na kvalitet rasada ruzmarina. Korišćene su i različite doze spororazlagajućeg đubriva (0, 1, 2, 3 i 4 g/l) Scotts (Osmocote Extact), koje su također ostvarile značajan uticaj.

In this study five different substrates were used, such as: compost; mixture of compost, Lumbrikus H and garden soil; mixture of compost and Lumbrikus H; mixture of compost, Lumbrikus H and peat Galicina and Seedling Klassman substrate. Basil seedling was produced in containers according to "speeding" system. The studies have shown that the best quality of basil seedling of varieties Genovese and Lattuga is achieved when the mixture of substrates Compost, Lumbrikus H and Galicina peat are applied in the volume proportion of 50% : 30% : 20%., U radu je ispitivano pet različitih supstrata kao što su; kompost; mešavina komposta, Lumbrikusa H i baštenske zemlje; mešavina komposta i Lumbrikusa H; mešavina komposta, Lumbrikusa H i treseta Galicine i Seedling Klassman supstrat. Rasad bosiljka je proizveden u kontejnerima po "speeding" sistemu. Ispitivanja su pokazala da se najbolji kvalitet rasada bosiljka sorata Genovese i Lattuga ostvaruje pri mešavini supstrata Komposta, Lumbrikus H i Galicina treseta u zapreminskom odnosu od 50% : 30% : 20.