通过田间试验研究了太湖地区小麦生产中不同施肥处理的氮磷径流流失规律。结果表明:小麦生长季径流损失的TN为10.08～21.29 kg/hm2,以硝态氮为主,占57.57%～81.81%,流失系数为1.40%～7.16%,流失率为5.50%～11.25%,PO43-和TDP流失分别为0.015～0.036 kg/hm2和0.047～0.077 kg/hm2,以TDP计算磷流失系数为-0.04%～0.03%,流失率为0.07%～0.17%。采用秸秆覆盖和深施化肥的措施能显著减少径流的氮流失。 A field experiment was conducted to study the runoff loss of nitrogen and phosphorus by different fertilization treatments in wheat production in Taihu Lake region. The results showed that TN of runoff loss in wheat growing season was 10.08 ~ 21.29 kg / hm2, accounting for 57.57% ~ 81.81%, with the loss coefficient of 1.40% ~ 7.16% and nitrate loss of 5.50% ~ 11.25% The loss of PO43- and TDP were 0.015-0.036 kg / hm2 and 0.047-0.077 kg / hm2, respectively. The phosphorus loss coefficient calculated by TDP was -0.04% -0.03% and the loss rate was 0.07% -0.17%. Straw cover and deep application of fertilizer can significantly reduce runoff nitrogen loss.