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7 侧深施肥不同施肥方式对水稻群体生长率的影响

Table 7 Effects of different fertilization methods on population growth rate in rice

年份 Year	品种 Variety	处理 Treatment	播种期至拔节期 S-J (g m^-2 d^-1)	拔节期至抽穗期 J-H (g m ^-2d^-1)	抽穗期至成熟期 H-M (g m^-2 d^-1)
2019	南粳9108 Nanjing 9108	0N	4.71 d	20.92 d	6.12 c
		CFM	6.79 c	24.62 b	10.72 a
		FM1	8.73 a	22.00 c	8.18 b
		FM2	8.70 a	22.08 c	7.82 b
		FM3	7.47 b	26.07 a	11.00 a
		FM4	7.46 b	26.00 a	10.95 a
	南粳5718 Nanjing 5718	0N	5.04 d	21.05 d	6.23 c
		CFM	7.16 c	25.09 b	11.41 a
		FM1	8.92 a	23.21 c	8.75 b
		FM2	8.90 a	23.28 c	9.03 b
		FM3	7.62 b	27.22 a	11.43 a
		FM4	7.63 b	27.10 a	11.42 a
2020	南粳9108 Nanjing 9108	0N	4.85 d	21.00 d	6.18 c
		CFM	6.87 c	24.70 b	10.78 a
		FM1	8.77 a	22.02 c	8.24 b
		FM2	8.74 a	22.14 c	7.88 b
		FM3	7.51 b	26.15 a	11.02 a
		FM4	7.44 b	26.02 a	10.99 a
	南粳5718 Nanjing 5718	0N	5.08 d	21.17 d	6.27 c
		CFM	7.20 c	25.15 b	11.45 a
		FM1	8.98 a	23.27 c	8.85 b
		FM2	8.92 a	23.34 c	9.09 b
		FM3	7.64 b	27.28 a	11.47 a
		FM4	7.67 b	27.14 a	11.48 a
方差分析Variance analysis		Y	ns	ns	ns
		V	**	**	**
		T	**	**	*
		Y×V	ns	ns	ns
		Y×T	ns	ns	ns
		V×T	**	*	*
		Y×V×T	ns	ns	ns