夏玉米产量与光温生产效率差异分析——以山东省为例

王洪章,刘鹏,董树亭,张吉旺,赵斌,任佰朝

Analysis of Gap Between Yield and Radiation Production Efficiency and Temperature Production Efficiency in Summer Maize: Taking Shandong Province as an Example

WANG HongZhang,LIU Peng,DONG ShuTing,ZHANG JiWang,ZHAO Bin,REN BaiZhao

表7 各因素对于产量差的贡献率

Table 7 Contribution rate of each factor to the yield gap

年份 Year 地点 Site 贡献率Contribution rate (%) 当前不可控因素 Non-controllable factors 可控因素Controllable factors 地域差异因素 Location factors 大量资源投入 Excess nutrients input 优化栽培措施 Optimized cultivation measures 当前农艺水平 Current crop management 2017 泰安Taian 60.58 11.20 14.89 13.33 — 淄博Zibo 57.58 7.95 19.80 14.67 2.08 烟台Yantai 50.86 1.06 27.21 20.87 1.59 2018 泰安Taian 56.54 10.39 22.34 10.74 7.01 淄博Zibo 54.62 8.58 15.36 11.44 1.23 烟台Yantai 60.78 8.64 17.29 13.28 — 平均Average 58.49 7.97 19.48 14.05 1.98