黄淮海区域现代夏玉米品种产量与养分吸收规律

程乙,刘鹏,刘玉文,庞尚水,董树亭,张吉旺,赵斌,任佰朝

Regulation of grain yield and nutrient absorption of modern summer maize varieties in the Yellow-Huaihe-Haihe Rivers region

Yi CHENG,Peng LIU,Yu-Wen LIU,Shang-Shui PANG,Shu-Ting DONG,Ji-Wang ZHANG,Bin ZHAO,Bai-Zhao REN

表1 不同产量水平下的产量数据分布

Table 1 Descriptive statistics of grain yield at different yield ranges

产量范围 Yield range (t hm-2) 样本量 n 平均值Mean 标准差SD 最小值Min. 最大值Max. 25%位点25%Q 50%位点50%Q 75%位点75%Q <7.0 20 6.52 0.35 5.84 6.98 6.22 6.46 6.90 7.0-8.0 74 7.56 0.28 7.03 7.99 7.33 7.59 7.79 8.0-9.0 117 8.54 0.28 8.01 9.00 8.26 8.56 8.79 9.0-10.0 105 9.47 0.28 9.01 9.99 9.23 9.44 9.72 10.0-11.0 53 10.41 0.28 10.03 10.93 10.11 10.45 10.64 >11.0 21 11.47 0.54 11.08 13.41 11.13 11.31 11.58 总和Total 390 8.91 1.23 5.84 13.41 8.07 8.85 9.75