Table 3 Effects of leaf removal on N remobilization in remaining tissues (g plant⁻¹) and the contribution of remobilized N to grain N in 2012 and 2013 growing seasons. S₀ refers to control (no leaf removal); S₂, S₄ and S₆ refer to the removal of two, four or six leaves from top of a plant at three days after silking, respectively.

Years	Treatment	N remobilization in different plant organs (g plant⁻¹)						Grain N at physiological maturity (g plant⁻¹)	Proportion of remobilized N in grain N (%)
Years	Treatment	Ear leaf	Stem	Other leaves	Cob	Bract	Total	Grain N at physiological maturity (g plant⁻¹)	Proportion of remobilized N in grain N (%)
2012	S₀	0.05	0.16	0.47	0.11	0.03	0.80	1.56	51.28
	S₂	0.06	0.30	0.43	0.13	0.13	1.05	1.80	58.33
	S₄	0.05	0.17	0.21	0.11	0.15	0.68	0.98	69.39
	S₆	0.05	0.22	0.17	0.08	0.18	0.70	0.83	84.34
	LSD 0.05	0.01	0.03	0.02	0.01	0.01	0.06	0.09	2.28
2013	S₀	0.06	0.17	0.42	0.09	0.04	0.78	1.51	51.66
	S₂	0.09	0.33	0.40	0.16	0.10	1.20	1.87	64.17
	S₄	0.06	0.22	0.23	0.06	0.11	0.68	0.94	72.34
	S₆	0.06	0.25	0.17	0.06	0.05	0.58	0.70	82.86
	LSD 0.05	0.02	0.04	0.05	0.02	0.04	0.04	0.11	3.09
ANOVA Year (Y) Leaf removal(L) Y × L		ns ns ns	ns **^,	ns **^,	ns ** ns	ns ** ns	ns *^,	ns *^,	ns *** ns
Blocks		ns	ns	ns	ns	ns	ns	ns	ns

Note: Data represents means ± SE (n = 3). LSD 0.05, least significant difference at 0.05. ns, Not significance; *Significant at the 0.05probability level; **Significant at the 0.01 probability level; ***Significant at the 0.001 probability level.

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