Chemical composition of the soil on the wine growing location Principovac

Republika Hrvatska se dijeli na dvije vinogradarske regije: kontinentalnu Hrvatsku i primorsku Hrvatsku, dok se te dvije regije dalje dijele na dvanaest podregija. U najistočnijem dijelu kontinentalne Hrvatske se nalazi podregija Podunavlje, u kojoj se nalaze tri vinogorja: vinogorje Srijem, vinogorje Erdut i vinogorje Baranja. Vinogorje Srijem je smješteno na krajnjem istoku Republike Hrvatske, a najveće vinogradarske površine se nalaze u okolici Iloka, na obroncima Fruške gore (od 80 do 200 m nadmorske visine). Vinogradarski položaj Principovac, smješten na zapadnim obroncima Fruške gore, poznat je po proizvodnji vrhunskih vina. Kako se kroz povijest nije vodila sistematična briga o stanju ishranjenosti vinove loze, a gnojidba se obavljala „na pamet“, bez obavljenih analiza tla, vjerojatno je došlo do debalansa među hranivima te povećanja reakcije tla, što utječe na pojavu fizioloških poremećaja. Utvrđena je slaba opskrba humusom i dušikom, srednja do dobra fosforom te dobra kalijem i magnezijem. Cilj ovog diplomskog rada je utvrditi pravo stanje kemijskih karakteristika i statusa hraniva u tlu, postaviti pravilnu dijagnozu te dizajnirati optimalni model gnojidbe vinove loze.Croatia is divided into two winegrowing regions: continental Croatia and coastal Croatia. The regions are further divided into twelve subregions. The winegrowing subregion Podunavlje is located in the easternmost part of the continental Croatia, and it's divided into three winegrowing regions: Srijem, Erdut i Baranja. The biggest winegrowing ares in Srijem are located in the area of Ilok, the easternmost town in Croatia. The best winegrowing positions in Srijem are located on the slopes of Fruška gora, on 80 to 200 m altitude. Winegrowing position Principovac, located on the western slopes of Fruška gora, is known for production of top quality wines. Fertilization in these areas has been done „by heart“ throughout history, without any soil analysis , so most likely an imbalance occured among the nutritions in the soil, which can cause physiological disturbances. Soil analysis found low supply of humus and nitrogen, medium to good phosphorus supplies, and good potassium and magnesium supplies.The goal of this greaduate thesis is to determin the real condition of chemical characteristics and nutririons status in the soil, to set a proper diagnosis and to design an optimal model for grapevine fertilization