不同降雨年型旱地冬小麦水分利用及产量对施氮量的响应

刘朋召,周栋,郭星宇,于琦,张元红,李昊昱,张琦,王旭敏,王小利,王瑞,李军

Response of Water Use and Yield of Dryland Winter Wheat to Nitrogen Application Under Different Rainfall Patterns

LIU PengZhao,ZHOU Dong,GUO XingYu,YU Qi,ZHANG YuanHong,LI HaoYu,ZHANG Qi,WANG XuMin,WANG XiaoLi,WANG Rui,LI Jun

表3 籽粒产量、蛋白质含量和水分利用效率与各生育阶段降雨量的相关性分析

Table 3 Correlation analysis between grain yield (GY), protein content (PC), water use efficiency (WUE) and rainfall at different growth stages

因子 Factor 各生育阶段降雨量 Rainfall in different growth stages 休闲期 FS 播种-越冬 SS-WS 越冬-拔节 WS-ES 拔节-开花 ES-AS 开花-成熟 AS-MS 籽粒产量 GY 籽粒产量 GY 0.935** 0.036 0.933** 0.606* -0.011 - 蛋白质含量 PC -0.589* 0.024 -0.589* -0.344 -0.039 -0.341 水分利用效率 WUE 0.727* -0.323 0.733* 0.121 0.339 0.889**