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7 增温对土壤氮素在水稻植株分配的影响

Table 7 Effects of warming on soil nitrogen allocation in rice plant

年份 Year	处理 Treatment	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	根系Root	秸秆Straw	籽粒Grain	根系Root	秸秆Straw	籽粒Grain
2019	对照CK	0.74±0.06 a	3.01±0.16 b	5.44±0.09 b	8.09±0.78 a	32.70±1.09 a	59.22±0.71 a
2019	增温W	0.72±0.03 a	4.49±0.23 a	7.21±0.02 a	5.79±0.17 a	36.10±1.02 a	58.10±1.32 a
2020	对照CK	0.82±0.02 a	3.78±0.19 b	9.42±0.29 b	5.84±0.13 a	26.92±0.61 a	67.24±0.48 a
2020	增温W	1.03±0.07 a	4.94±0.02 a	11.80±0.11 a	5.80±0.37 a	27.82±0.26 a	66.38±0.37 a