不同耐低氮性玉米品种的花后碳氮积累与转运特征

吴雅薇, 蒲玮, 赵波, 魏桂, 孔凡磊, 袁继超

Characteristics of post-anthesis carbon and nitrogen accumulation and translocation in maize cultivars with different low nitrogen tolerance

WU Ya-Wei, PU Wei, ZHAO Bo, WEI Gui, KONG Fan-Lei, YUAN Ji-Chao

表1 2017-2019年玉米播前0~20 cm土层基础地力

Table 1 Foundation soil capacity of 0-20 cm soil layer before maize sowing date from 2017 to 2019

年份 Year 全氮 Total N (g kg-1) 有机质 Organic matter (g kg-1) 碱解氮 Alkali-hydrolysable N (mg kg-1) 速效磷 Available P (mg kg-1) 速效钾 Available K (mg kg-1) pH 2017 1.55 10.32 110.60 11.16 131.91 5.78 2018 1.51 11.13 108.53 15.43 105.27 5.90 2019 1.23 10.66 48.22 12.84 122.07 5.46