不同栽培管理条件下夏玉米产量与肥料利用效率的差异解析

王洪章,刘鹏,贾绪存,李静,任昊,董树亭,张吉旺,赵斌

Analysis of differences in summer maize yield and fertilizer use efficiency under different cultivation managements

Hong-Zhang WANG,Peng LIU,Xu-Cun JIA,Jing LI,Hao REN,Shu-Ting DONG,Ji-Wang ZHANG,Bin ZHAO

表3 不同产量层次夏玉米产量及各级产量差

Table 3 Yield and yield gap at different yield levels

年份 Year	地点 Site	产量 Yield (t hm^-2)				产量差 Yield gap (%)
年份 Year	地点 Site	Y_RT	Y_SH	Y_HH	Y_FP	YG_I	YG_II	YG_III
2017	泰安Tai’an	17.71	12.30 a	11.30 b	9.97 c	30.55	36.19	43.70
	淄博Zibo	16.78	12.07 a	11.42 b	9.80 c	28.07	31.94	41.60
	烟台Yantai	15.84	11.99 a	11.91 a	9.85 b	24.31	24.81	37.82
2018	泰安Tai’an	19.06	12.53 a	11.33 b	8.75 c	34.26	40.56	54.09
	淄博Zibo	20.25	12.34 a	11.29 b	9.41 c	39.06	44.25	53.53
	烟台Yantai	19.09	12.41 a	11.46 b	9.56 c	34.99	39.97	49.92
平均Average		18.12	12.27 a	11.45 b	9.56 c	31.87	36.29	46.78