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5 不同农学管理模式下春玉米磷素积累及对籽粒的贡献

Table 5 P 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 26.6b 40.4c 39.7 60.3 29.2 70.8 60.1 FP 35.3b 63.3b 35.8 64.2 19.0 81.0 40.6 Opt-1 38.4b 82.1a 31.9 68.1 19.5 80.5 50.6 Opt-2 53.5a 66.2b 44.7 55.3 38.5 61.5 74.3 Opt-3 50.9a 67.1b 43.1 56.9 37.1 62.9 75.1 2010 CK — — — — — — — FP 52.8b 18.8ab 73.8 26.2 64.0 36.0 59.6 Opt-1 65.4a 22.2a 74.7 25.3 68.4 31.6 66.2 Opt-2 73.5a 27.0a 73.1 26.9 67.1 32.9 69.2 Opt-3 59.2b 33.9a 63.6 36.4 51.5 48.5 58.9 2011 CK — — — — — — — FP 38.8b 44.8b 46.4 53.6 31.3 68.7 51.1 Opt-1 49.3b 65.2a 43.1 56.9 24.9 75.1 42.0 Opt-2 61.2a 59.5ab 51.6 48.4 34.2 65.8 45.6 Opt-3 62.8a 52.6ab 53.9 46.1 38.4 61.6 50.0