To maximize recoverable sucrose from sugarbeet (Beta vulgaris L.), producers must e ectively manage added N, be it from urea or organic sources such as manure or composted manure. Our study's objective was to determine the e ects of a one-time application of stockpiled and composted dairy cattle (Bos taurus) manure on sugarbeet N uptake, nitrogen recovery (NR) and nitrogen use e ciency (NUE). First-year Site A treatments included a control (no N), urea (202 kg N ha -1 ), compost (218 and 435 kg estimated available N ha -1 ), and manure (140 and 280 kg available N ha -1 ). Site B treatments were a control, urea (82 kg N ha -1 ), compost (81 and 183 kg available N ha -1 ), and manure (173 and 340 kg available N ha -1 ). Compost and manure were incorporated into two silt loams, a Greenleaf ( ne-silty, mixed, superactive, mesic Xeric Calciargid) near Parma, ID, in fall 2002 and 2003 and a Portneuf (coarse-silty, mixed, superactive, mesic Durinodic Xeric Haplocalcid) near Kimberly, ID, in fall 2002 with sugarbeet planted the following spring. At each site, N uptake of sugarbeet tops, but not roots, was similar whether fertilized with urea or organic N, regardless of rate. Incorporating equal organic amendment rates to 0.05 rather than 0.10 m increased whole-plant N uptake 1.13-fold, to 163.3 kg N ha -1 . In general, NR varied among fertilizer sources such that urea >> manure > compost. Where similar available N rates were supplied, NUE ranged from 44.1 to 83.5 kg sucrose kg -1 available N, not di ering among inorganic and organic N sources within site-years.