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4 增温对水稻氮素吸收与分配的影响

Table 4 Effects of warming on the nitrogen uptake and its allocation in rice

年份 Year	处理 Treatment	氮素吸收总量 Total N uptake (g m^-2)	植株不同部位氮素吸收量 N uptake by different parts of the plant (g m^-2)			植株不同部位氮素吸收量占比 Ratio of N uptake by different parts of the plant (%)
年份 Year	处理 Treatment	氮素吸收总量 Total N uptake (g m^-2)	根系 Root	秸秆 Straw	籽粒 Grain	根系 Root	秸秆 Straw	籽粒 Grain
2019	对照CK	12.33±0.18 b	0.98±0.08 a	4.02±0.18 b	7.32±0.07 b	7.99±0.77 a	32.60±1.05 a	59.42±0.52 a
2019	增温W	15.11±0.22 a	0.92±0.03 a	5.54±0.21 a	8.65±0.03 a	6.09±0.14 a	36.62±0.88 a	57.29±1.02 a
2020	对照CK	17.12±0.43 b	0.99±0.02 a	4.64±0.18 b	11.49±0.25 b	5.77±0.09 a	27.08±0.53 a	67.16±0.45 a
2020	增温W	20.55±0.18 a	1.19±0.09 a	5.71±0.04 a	13.65±0.11 a	5.80±0.38 a	27.78±0.20 a	66.42±0.42 a