Effect of Regime of Irrigation and Fertilization of Sugar Beet (Beta vulgaris L.) on Yield of Sugar

The aim of this research was to analyze the effects of different variants of irrigations and fertilization of sugar beet (Beta vulgaris L.) on the yield of total sugar. The study was performed in agro-ecological conditions in valley Pelagonija in R. of Macedonia in period from 2012 to 2014. The following different regimes of irrigation were applied: irrigation at 75% utilized available water (uAW); 50% uAW; 25% uAW; and irrigation on the basis of bioclimatic coefficient (BC). Control was a variant without irrigation. The fertilization was applied at three different levels: low, medium and high. Control was a non-fertilized variant.This study is very important because simultaneously supplying of sugar beet with water and mineral matters is required for achievement of high and quality yields. The highest yield of total sugar was obtained in a irrigation treatment with 50% uAW and medium dose of fertilization. Keywords: sugar beet ( Beta vulgaris L.); irrigation, fertilization; total sugar yield