田间开放式增温对东北水稻氮素利用的影响

阮俊梅, 张俊, 刘猷红, 董文军, 孟英, 邓艾兴, 杨万深, 宋振伟, 张卫建

Effects of free air temperature increase on nitrogen utilization of rice in northeastern China

RUAN Jun-Mei, ZHANG Jun, LIU You-Hong, DONG Wen-Jun, MENG Ying, DENG Ai-Xing, YANG Wan-Shen, SONG Zhen-Wei, ZHANG Wei-Jian

表2 增温对大田水稻产量及产量构成的影响

Table 2 Effects of warming on rice yield and yield components

年份 Year	处理 Treatment	穗数 Effect panicles (×10⁴ hm^-2)	穗粒数(粒) Grains per panicle	千粒重 1000-grain weight (g)	产量 Yield (t hm^-2)
2019	对照CK	506.67±21.77 a	73.49±2.49 a	19.56±0.51 a	8.30±0.08 b
2019	增温W	520.00±18.86 a	74.29±1.54 a	21.10±0.24 a	9.00±0.10 a
2020	对照CK	458.67±12.12 a	106.92±3.11 a	23.39±0.16 a	10.00±0.32 a
2020	增温W	464.00±26.40 a	113.99±2.48 a	22.46±0.38 a	11.24±0.44 a