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3 侧深施肥不同施肥方式对水稻茎蘖动态的影响

Table 3 Effects of different fertilization methods on tillering dynamics of rice

年份 Year	品种 Variety	处理 Treatment	分蘖盛期 Peak seeding stage (×10⁴ hm^-2)	拔节期 Jointing stage (×10⁴ hm^-2)	抽穗期 Heading stage (×10⁴ hm^-2)	成熟期 Maturity stage (×10⁴ hm^-2)	茎蘖成穗率 Percentage of productive tiller (%)
2019	南粳9108 Nanjing 9108	0N	342.20 e	327.37 e	257.53 c	257.43 d	74.54 a
		CFM	515.20 d	503.79 d	355.11 b	353.44 c	68.29 b
		FM1	611.79 a	585.48 a	355.46 b	355.47 c	57.50 c
		FM2	622.08 a	594.71 a	381.68 a	379.14 b	60.13 c
		FM3	589.87 b	580.07 ab	408.13 a	408.34 a	68.12 b
		FM4	569.61 c	555.34 c	396.63 a	394.82 a	65.41 b
	南粳5718 Nanjing 5718	0N	366.13 d	346.88 e	268.24 d	268.41 c	72.64 a
		CFM	534.42 c	512.33 d	368.71 c	366.47 b	67.89 b
		FM1	631.77 a	622.97 a	380.50 b	377.59 b	59.31 c
		FM2	629.59 a	620.22 a	381.83 b	379.71 b	59.67 c
		FM3	604.49 b	597.85 ab	415.67 a	415.21 a	68.05 b
		FM4	589.76 b	567.67 c	410.78 a	408.88 a	68.82 b
2020	南粳9108 Nanjing 9108	0N	340.22 e	323.89 e	257.35 d	257.21 d	71.92 a
		CFM	511.02 d	500.43 d	353.11 c	350.78 c	67.30 b
		FM1	610.85 a	582.14 a	353.26 c	351.25 c	60.75 c
		FM2	618.56 a	590.85 a	377.48 b	376.22 b	60.50 c
		FM3	586.39 b	576.39 ab	402.11 a	400.12 a	67.86 b
		FM4	567.11 c	551.56 c	393.15 a	392.22 a	71.08 a
	南粳5718 Nanjing 5718	0N	361.25 d	343.58 e	264.58 c	264.23 c	76.49 a
		CFM	530.68 c	510.15 d	362.15 b	361.75 b	67.09 b
		FM1	628.55 a	620.05 a	377.22 b	376.19 b	60.44 c
年份 Year	品种 Variety	处理 Treatment	分蘖盛期 Peak seeding stage (×10⁴ hm^-2)	拔节期 Jointing stage (×10⁴ hm^-2)	抽穗期 Heading stage (×10⁴ hm^-2)	成熟期 Maturity stage (×10⁴ hm^-2)	茎蘖成穗率 Percentage of productive tiller (%)
		FM2	627.15 a	615.64 a	379.29 b	378.05 b	61.57 c
		FM3	601.25 b	592.61 ab	411.39 a	410.05 a	68.06 b
		FM4	585.28 b	564.55 c	408.12 a	407.56 a	69.24 b
方差分析Variance analysis		Y	ns	ns	ns	ns	ns
		V	**	*	*	*	ns
		T	**	**	**	**	**
		Y×T	ns	ns	ns	ns	ns
		Y×V	ns	ns	ns	ns	ns
		V×T	**	**	**	**	**
		Y×V×T	ns	ns	ns	ns	ns