宛氏拟青霉提取物对夏玉米产量及氮素利用的影响

王庆彬, 聂振田, 卢洁春, 彭春娥, 张民, 孟慧, 刘治国, 耿全政

Effects of Paecilomyces variotii Extract on Yield and Nitrogen Utilization of Summer Maize

Wang Qingbin, Nie Zhentian, Lu Jiechun, Peng Chun’e, Zhang Min, Meng Hui, Liu Zhiguo, Geng Quanzheng

表3 氮肥配施ZNC对玉米氮素利用的影响

Table 3 Effects of nitrogen fertilizer combined with ZNC on nitrogen utilization of maize

处理 Treatment 氮素积累量 N accumulation (kg/hm2) 氮素投入量 N input (kg/hm2) 氮素利用率 N utilization efficiency (%) 氮肥农学效率 N agronomic efficiency (kg/kg) 氮肥偏生产力 N partial productivity (kg/kg) CK 152.30±0.81h 0 - - - U 190.21±0.89e 225 17.93±0.40f 10.40±0.05e 44.09±0.50f UZ 194.75±0.88d 225 19.94±0.39e 11.46±0.10cde 46.68±0.24e CRU 235.39±0.58b 225 37.08±0.27b 12.99±0.11b 48.86±0.60d CRUZ 277.73±1.42a 225 56.82±0.63a 14.23±0.33a 49.87±0.24d 80%U 173.16±0.26g 180 12.93±0.14h 8.83±0.02f 52.13±0.02c 80%UZ 188.94±0.42e 180 21.70±0.23d 12.11±0.93bc 58.18±0.66a 80%CRU 178.88±0.66f 180 16.11±0.37g 10.88±0.01de 54.18±0.01b 80%CRUZ 209.14±0.08c 180 32.92±0.05c 11.90±0.05bcd 55.23±0.17b