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6 不同农学管理模式下春玉米钾素积累及对籽粒的贡献

Table 6 K accumulation and contribution to grain of spring maize under different agronomic management practices

年份 Year 处理 Treatment 积累量 Accumulation of dry matter (kg·hm-2) 积累率 Accumulation rate (%) 对籽粒贡献率 Accumulation rate (%) 转运效率 Translocation rate (%) 吐丝前BS 吐丝后AS 吐丝前BS 吐丝后AS 吐丝前BS 吐丝后AS 2009 CK 78.1b 27.5b 74.0 26.0 35.3 64.7 14.7 FP 117.9b 60.9a 65.9 34.1 22.1 77.9 12.2 Opt-1 163.8ab 22.0b 88.2 11.8 76.1 23.9 26.9 Opt-2 188.4a 19.6b 90.6 9.4 81.9 18.1 25.9 Opt-3 173.8a 13.7c 92.7 7.3 89.0 11.0 29.1 2010 CK — — — — — — — FP 112.6b 3.4c 97.0 3.0 85.7 14.3 23.0 Opt-1 134.9a 5.3c 96.2 3.8 77.9 22.1 9.9 Opt-2 148.7a 29.9a 83.3 16.7 50.6 49.4 15.5 Opt-3 145.5a 15.3b 90.5 9.5 67.2 32.8 16.9 2011 CK — — — — — — — FP 84.6c 45.2a 65.2 34.8 21.8 78.2 13.3 Opt-1 114.1b 47.7a 70.5 29.5 40.2 59.8 24.5 Opt-2 156.2a 26.4b 85.5 14.5 63.8 36.2 25.0 Opt-3 156.1a 21.9b 87.7 12.3 69.2 30.8 24.4