研究结果表明:尿素混入脲酶抑制剂可大大减少尿素的氨化挥发损失,提高甘蔗对尿素氮的利用率7.9％,节省尿素用量20％左右,减少施肥用工2～3个。同时,使甘蔗叶色常绿,生长均匀,比不混脲酶抑制剂的对照可平均亩增蔗茎产量480kg(n=197),增产率为7.3％,达到统计显著水准,亩增农业纯收益72元。脲酶抑制剂的适宜用量,水田蔗区为尿素肥量的3％,旱地蔗区为2％。 The results showed that urea mixed with urease inhibitor could greatly reduce the ammonification volatilization loss of urea, improve the utilization rate of urea nitrogen of sugarcane by 7.9%, save about 20% of urea dosage and reduce the use of fertilizers by 2 ~ 3. At the same time, the color of sugarcane leaf was evergreen and grew well. Compared with the control without Urease inhibitor, the average output of sugarcane was 480 kg (n = 197) and the yield was 7.3%, reaching a statistically significant level. 72 yuan. The appropriate amount of urease inhibitors, paddy field of urea fertilizer 3%, 2% dry land sugarcane.