侧深施氮对水稻产量及氮素吸收利用的影响
黄恒, 姜恒鑫, 刘光明, 袁嘉琦, 汪源, 赵灿, 王维领, 霍中洋, 许轲, 戴其根, 张洪程, 李德剑, 刘国林

Effects of side deep placement of nitrogen on rice yield and nitrogen use efficiency
HUANG Heng, JIANG Heng-Xin, LIU Guang-Ming, YUAN Jia-Qi, WANG Yuan, ZHAO Can, WANG Wei-Ling, HUO Zhong-Yang, XU Ke, DAI Qi-Gen, ZHANG Hong-Cheng, LI De-Jian, LIU Guo-Lin
表10 侧深施肥不同施肥方式对水稻氮效率的影响
Table 10 Effects of different fertilization methods on nitrogen efficiency in rice
年份
Year		 品种
Variety		 处理Treatment 氮素农学利用率
N agronomic
efficiency
(kg kg-1)		 氮素生理
利用率
N physiological
efficiency
(kg kg-1)		 氮素吸收
利用率
N recovery
efficiency
(%)		 氮素谷物
生产效率
N grain
production efficiency
(kg kg-1)		 氮素干物质生产效率
N dry matter production efficiency
(kg kg-1)		 百千克籽粒
需氮量
N requirement
for 100-kg grain
(kg)		 氮素偏
生产力
N partial factor
productivity
(kg kg-1)
2019 南粳9108
Nanjing 9108		 0N — — — 61.31 a 107.51 a 1.63 b —
CFM 9.93 b 31.43 b 30.33 c 48.27 b 99.36 b 2.07 a 33.57 d
FM1 7.47 c 25.69 c 29.07 c 46.14 c 93.07 c 2.17 a 31.50 e
FM2 10.83 b 33.71 b 32.13 b 48.88 b 88.79 c 2.05 a 34.87 c
FM3 13.77 a 38.35 a 35.90 a 50.33 b 99.68 b 1.99 a 37.80 a
FM4 12.33 a 35.78 a 34.47 a 49.37 b 102.49 ab 2.03 a 36.37 b
南粳5718
Nanjing 5718		 0N — — — 69.92 a 104.08 a 1.43 b —
CFM 8.07 b 22.91 b 35.50 c 46.19 b 98.74 b 2.16 a 34.57 b
FM1 7.23 c 20.74 c 35.13 c 44.30 c 95.26 c 2.21 a 33.73 c
FM2 8.33 b 24.95 b 36.77 b 45.77 b 101.99 a 2.18 a 34.83 b
FM3 10.97 a 27.64 a 42.17 a 45.97 b 99.63 ab 2.18 a 37.47 a
FM4 10.50 a 27.34 a 40.70 a 46.23 b 98.78 b 2.16 a 37.00 a
2020 南粳9108
Nanjing 9108		 0N — — — 57.47 a 105.45 a 1.74 b —
CFM 11.10 b 33.22 b 30.40 c 46.89 b 99.12 b 2.13 a 33.67 b
FM1 10.43 c 25.81 c 29.13 c 48.25 c 92.63 c 2.07 a 31.00 c
FM2 11.67 b 34.31 b 32.13 b 45.95 b 88.23 c 2.09 a 34.23 b
FM3 13.20 a 36.77 a 35.90 a 47.58 b 99.62 b 2.10 a 35.77 a
FM4 12.73a 36.94 a 34.47 a 47.88 b 100.45 ab 2.09 a 35.30 a
南粳5718
Nanjing 5718		 0N — — — 65.63 a 101.26 a 1.52 b —
CFM 9.73 b 23.78 b 35.50 c 44.86 b 97.56 b 2.23 a 33.63 b
FM1 9.03 c 21.87 c 35.13 c 42.49 c 90.54 c 2.20 a 31.93 c
FM2 10.37 b 25.48 b 37.77 b 46.26 b 100.25 a 2.16 a 34.27 b
FM3 11.50 a 28.94 a 42.10 a 44.63 b 98.53 ab 2.24 a 36.40 a
FM4 10.80 a 28.08 a 40.70 a 44.53 b 96.52 b 2.25 a 35.70 a
方差分析
Variance analysis		 Y ns ns ns ns ns ns ns
V ** ** ** ** ns ns **
T ** ** ** ** ** ns **
Y×V ns ns ns ns ns ns ns
Y×T ns ns ns ns ns ns ns
V×T ** ** ** ** ** ns **
Y×V×T ns ns ns ns ns ns ns