秸秆条带还田对东北春玉米产量、土壤水氮及根系分布的影响

安俊朋, 李从锋, 齐华, 隋鹏祥, 张文可, 田平, 有德宝, 梅楠, 邢静

Effects of Straw Strip Returning on Spring Maize Yield, Soil Moisture, Nitrogen Contents and Root Distribution in Northeast China

Jun-Peng AN, Cong-Feng LI, Hua QI, Peng-Xiang SUI, Wen-Ke ZHANG, Ping TIAN, De-Bao YOU, Nan MEI, Jing XING

表1 秸秆条带还田对春玉米产量及其构成因素的影响

Table 1 Yield and yield components of spring maize in different treatment

年份 Year 处理 Treatment 穗粒数 Grain number (per ear) 千粒重 1000-kernel weight (g) 产量 Yield (kg hm-2) 收获指数 Harvest index 2015 RR+S 466.83±24.66 b 307.12±16.64 a 7412.99±211.71 a 0.42±0.06 ab RR 363.85±20.60 c 304.04±42.93 a 6655.35±326.94 b 0.33±0.10 b IR+S 511.88±13.99 a 275.34±34.27 a 7234.28±103.94 a 0.49±0.02 a IR 351.53±26.40 c 277.20±20.87 a 6331.27±247.10 b 0.32±0.09 b 2016 RR+S 514.80±38.66 ab 345.90±18.02 ab 12120.94±145.29 a 0.56±0.02 a RR 465.46±28.88 b 366.07±9.81 a 11655.48±186.20 bc 0.55±0.01 a IR+S 535.15±34.18 a 321.81±18.58 b 12052.68±351.78 ab 0.49±0.03 b IR 485.64±2.01 ab 363.13±5.80 a 11494.58±159.99 c 0.55±0.01 a 显著性分析(F值) Interaction analysis of yield and yield components (F-value) S 41.055** 1.455 28.286** 4.268 M 1.680 2.939 2.103 0.100 S×M 1.036 0.273 0.222 0.100