INFLUENCE OF ORGANIC AND MINERAL FERTILIZERS ON AGRONOMIC TRAITS OF POTATO

Cilj istraživanja provedenih na pokušalištu Agronomskoga fakulteta u Zagrebu tijekom 2012. i 2013. godine bio je utvrditi utjecaj gnojidbe organskim i mineralnim gnojivima na agronomska svojstva krumpira. U istraživanju su bila dva organska gnojiva, Biorex i Italpollina, mineralna gnojiva te kombinacija mineralnih i organskih gnojiva. Najveći prinos gomolja i prinos suhe tvari ostvareni su gnojidbom samo mineralnim gnojivima i mineralnim i organskim gnojivima. U ukupnome prinosu gomolja krumpira najveći udio imala je frakcija 35-55 mm. Gnojidba mineralnim gnojivima i kombinacija mineralnih i organskih gnojiva imale su pozitivan učinak na udio frakcije ˃55 mm, osobito u vremenski povoljnijoj 2012. godini.The aim of research conducted on the experimental field of Faculty of Agriculture in Zagreb during 2012 and 2013 was to determine the influence of organic and mineral fertilizers on the agronomic properties of potato. The research comprised two organic fertilizers, Biorex and Italpollina, mineral fertilizers and a combination of mineral and organic fertilizers. The highest yield of tuber and dry matter was achieved when the fertilization was conducted using solely mineral fertilizers or a combination of mineral and organic fertilizers. Fraction 35-55 mm had the highest share in the total tuber yield. Fertilization with mineral fertilizers and with the combination of mineral and organic fertilizers had a positive effect on the share of fractions ˃55 mm particularly in favourable 2012 year

INFLUENCE OF ORGANIC AND MINERAL FERTILIZERS ON AGRONOMIC TRAITS OF POTATO

The aim of research conducted on the experimental field of Faculty of Agriculture in Zagreb during 2012 and 2013 was to determine the influence of organic and mineral fertilizers on the agronomic properties of potato. The research comprised two organic fertilizers, Biorex and Italpollina, mineral fertilizers and a combination of mineral and organic fertilizers. The highest yield of tuber and dry matter was achieved when the fertilization was conducted using solely mineral fertilizers or a combination of mineral and organic fertilizers. Fraction 35-55 mm had the highest share in the total tuber yield. Fertilization with mineral fertilizers and with the combination of mineral and organic fertilizers had a positive effect on the share of fractions ˃55 mm particularly in favourable 2012 year

UTJECAJ GNOJIDBE ORGANSKIM I MINERALNIM GNOJIVIMA NA AGRONOMSKA SVOJSTVA KRUMPIRA

Cilj istraživanja provedenih na pokušalištu Agronomskoga fakulteta u Zagrebu tijekom 2012. i 2013. godine bio je utvrditi utjecaj gnojidbe organskim i mineralnim gnojivima na agronomska svojstva krumpira. U istraživanju su bila dva organska gnojiva, Biorex i Italpollina, mineralna gnojiva te kombinacija mineralnih i organskih gnojiva. Najveći prinos gomolja i prinos suhe tvari ostvareni su gnojidbom samo mineralnim gnojivima i mineralnim i organskim gnojivima. U ukupnome prinosu gomolja krumpira najveći udio imala je frakcija 35-55 mm. Gnojidba mineralnim gnojivima i kombinacija mineralnih i organskih gnojiva imale su pozitivan učinak na udio frakcije ˃55 mm, osobito u vremenski povoljnijoj 2012. godini