播/收期对冬小麦-夏玉米一年两熟模式周年 气候资源分配与利用特征的影响

周宝元,马玮,孙雪芳,高卓晗,丁在松,李从锋,赵明

Effects of Different Sowing and Harvest Dates of Winter Wheat- Summer Maize Under Double Cropping System on the Annual Climate Resource Distribution and Utilization

ZHOU BaoYuan,MA Wei,SUN XueFang,GAO ZhuoHan,DING ZaiSong,LI CongFeng,ZHAO Ming

表8 不同播/收期处理冬小麦-夏玉米光温生产效率

Table 8 Production efficiency of accumulated temperature and radiation for winter wheat and summer maize with different sowing/ harvest dates

年份 Year 处理 Treatment 积温生产效率 Production efficiency of temperature (kg·hm-2·℃-1) 光能生产效率 Production efficiency of radiation (g·MJ-1) 小麦 Wheat 玉米 Maize 周年 Annual 小麦 Wheat 玉米 Maize 周年 Annual 2015-2016 Ⅰ 3.30c 3.20ab 3.24b 0.32b 0.54ab 0.41b Ⅱ 3.66b 3.27a 3.43a 0.32b 0.56a 0.43a Ⅲ 3.37c 3.20ab 3.25b 0.31b 0.55ab 0.42ab Ⅳ 3.28c 3.10b 3.17b 0.29c 0.53b 0.41b Ⅴ 4.09a 3.08b 3.42a 0.36a 0.50c 0.44a 2016-2017 Ⅰ 3.90c 3.18ab 3.45b 0.38b 0.56ab 0.44b Ⅱ 4.20b 3.24a 3.63a 0.39b 0.58a 0.47a Ⅲ 3.85c 3.18ab 3.44b 0.35c 0.56ab 0.45ab Ⅳ 3.82c 3.04bc 3.32b 0.35c 0.54b 0.44b Ⅴ 4.79a 3.01c 3.62a 0.44a 0.51c 0.48a 年份Year (Y) 0.001 0.590 0.017 0.001 0.069 0.002 处理Treatment (T) 0.001 0.347 0.049 0.002 0.001 0. 022 Y×T 0.412 0.899 0.698 0.031 0.977 0.867