综合农学管理模式对春玉米产量和养分累积特征的影响

袁静超,刘剑钊,梁尧,展文洁,张洪喜,曾子豪,蔡红光,任军

Characteristics of Grain Yield and Nutrient Accumulation for Spring Maize Under Different Agronomic Management Practices

JingChao YUAN,JianZhao LIU,Yao LIANG,WenJie ZHAN,HongXi ZHANG,ZiHao ZENG,HongGuang CAI,Jun REN

表7 不同农学管理模式下春玉米氮、磷、钾偏生产力

Table 7 Partial factor productivity of N, P, and K under different agronomic management practices

年份 Year 处理 Treatment 氮肥偏生产力 Partial factor productivity of N 磷肥偏生产力 Partial factor productivity of P 钾肥偏生产力 Partial factor productivity of K 2009 CK — — — FP 37.1d 101.3b 123.8a Opt-1 46.7a 121.4a 110.4b Opt-2 30.5c 76.2c 76.2d Opt-3 40.7b 101.8b 101.8c 2010 CK — — — FP 39.8c 108.4c 132.5a Opt-1 51.4a 133.6a 121.4b Opt-2 34.6cd 86.6d 86.6d Opt-3 44.9b 112.2b 112.3c 2011 CK — — — FP 41.1c 112.2c 137.1a Opt-1 54.6a 141.9a 129.0ab Opt-2 36.9d 92.3d 92.3c Opt-3 48.8b 122.1b 122.1b