Abstract: The main objective of this study was to determine spatial variability of sugar beet leaf N content affected by distribution pattern of urea fertigation. This study was conducted in Fesaran village, Isfahan Province of Iran and limited to sugar beet (monogerm seed) which is the fourth commercial crop in Isfahan Province. Urea applied through sprinkler irrigation (solid set system-removable sprinklers). Soil and sugar beet leaves samples were obtained to specify soil total N as well leaf N content. Results of soil and crop analysis were used to produce spatial variability maps through GS+ and ArcGIS 9.2 software. Semivariogram results were used to perform an ordinary kriging to obtain interpolated values of selected variables from the sample points through and across the study area. It was found that there was a low variability of soil total N 4 days after fertigation as well as low variability in sugar beet leaf N content which indicates that the soil has a homogenous total N through and across the field and urea fertigated uniformly on sugar beet leaves. The results of urea fertigation through sprinklers indicate uniform fertigation makes low spatial variability of sugar beet leaf N content.