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2 不同农学管理模式下春玉米的产量及其构成因素

Table 2 The grain yield and its components under different agronomic management practices

年份 Year 处理 Treatment 产量 Grain yield (kg·hm-2) 收获穗数 Ear number (hm-2) 穗粒数 Kernel number 百粒重 100-kernel weight (g) 增产 Increase (%) 2009 CK 5991.6b 53000c 389b 29.8b — FP 8356.6a 45000d 503a 37.2a — Opt-1 9108.0a 63000a 521a 29.9b 9.0 Opt-2 9142.0a 61000b 504a 30.4b 9.4 Opt-3 9163.7a 63000a 501a 29.8b 9.7 2010 CK 7526.1c 58000b 398c 33.9c — FP 8945.6b 51000c 479a 37.9b — Opt-1 10019.9a 57000b 455a 40.7a 12.0 Opt-2 10390.4a 67000a 388c 41.7a 16.2 Opt-3 10102.5a 64000a 401b 41.0a 12.9 2011 CK 4457.0c 57000b 288c 27.6b — FP 9253.0b 47000c 638a 35.2ab — Opt-1 10639.0a 57000b 558b 32.6a 15.0 Opt-2 11077.9a 62000a 504b 33.5ab 19.7 Opt-3 10985.0a 65000a 504b 32.5b 18.7 变异来源 Sources of variance 年份 Year (Y) 15.77** 15.81** 28.55** 104.26** 处理 Treatment (T) 85.66** 3.23** 45.64** 21.85** 年份×处理 Y×T 8.09** 11.90** 11.78** 6.87**