Field plot experiments were conducted to investigate the effects of controlled-releases coated urea on wheat yield and apparent N recovery rates.The yields and apparent N recovery rates of 30%urea,35% coated urea with releasing time in 90 d and 35% coated urea with releasing time in 120 d mixed application(F2) were the best.Compared with 40% basal to 60% top dressing urea applied at jointing stage(F1),the yields and apparent N recovery rates of F2 increased by 5.36%-7.16% and 13.03%-16.72%,respectively.From...