Abstract: [Objective] Using foxtail millet varieties Yugu 18 as materials,this experiment aims to study the effect of nitrogen application amount on the growth and yield of foxtail millet in the hope of providing scientific basis for nitrogen reasonable application amount of foxtail millet by drip irrigation under the condition of drip irrigation of mulch in Xinjiang.[Method] Through the field test,the plant height,ear length,single ear weight,biomass and yield etc.were analyzed under the condition of different nitrogen application amounts.[Result] Ear length,single ear weight,biomass and yield demonstrated a trend of increasing first and then decreasing.Nitrogen application amount had not significant effect on the plant height during the growth of foxtail millet by drip irrigation under mulch.[Conclusion] The best nitrogen application amount of foxtail millet by drip irrigation under mulch was 180 kg/hm2 under this experiment condition.

摘要： [目的]以谷子品种豫谷18号为试验材料,研究膜下滴灌条件下氮肥不同施用量对谷子生长和产量的影响,为新疆膜下滴灌谷子氮肥合理施用提供科学依据.[方法]通过田间试验,对氮肥不同施用量条件下,谷子株高、穗长、单穗重、生物量、产量等进行分析.[结果]膜下滴灌谷子的穗长、单穗重、生物量、产量等指标均随着氮肥施用量增加呈先上升后下降的变化趋势.氮肥施用量对膜下滴灌谷子的各生育期株高影响不显著.[结论]膜下滴灌谷子氮肥最佳施用量为180 kg/hm2.