Table 2.

(a) N and (b) P content in leaf, stem, root and nodule of Vicia faba L. as influenced by the factors A (N, NM, NR and NRM), B (N supplies LN and HN) and C (harvest intervals T₁ and T₂)

(a) Variable value = N concentration (mg g−1 dry mass)
Factors					Variable			Variable			Variable			Variable
A	B	C	Leaf N	Tukey-t	Stem N	Tukey-t	Root N	Tukey-t	Nodule N	Tukey-t
N	LN	T1	25·61 ± 1·07	a	11·79 ± 0·46	a	20·48 ± 0·98	a
N	LN	T2	25·64 ± 0·78	a	11·89 ± 0·54	a	20·15 ± 0·53	a
N	HN	T1	39·51 ± 0·61	cd	19·61 ± 0·59	cd	23·67 ± 1·34	bc
N	HN	T2	40·05 ± 0·65	de	19·69 ± 0·66	cd	23·84 ± 0·49	bcd
NM	LN	T1	27·14 ± 0·85	a	13·10 ± 0·65	ab	22·62 ± 0·94	ab
NM	LN	T2	29·47 ± 0·55	b	14·99 ± 0·53	b	25·01 ± 0·56	bcde
NM	HN	T1	40·61 ± 0·70	de	20·23 ± 0·68	d	24·08 ± 0·48	bcd
NM	HN	T2	41·80 ± 0·95	ef	21·37 ± 0·41	def	24·89 ± 0·81	bcde
NR	LN	T1	37·62 ± 1·10	c	17·81 ± 0·45	c	25·67 ± 0·95	cdef	51·53 ± 0·75	abc
NR	LN	T2	41·44 ± 1·13	def	20·31 ± 0·40	de	28·60 ± 1·17	gh	54·40 ± 1·61	c
NR	HN	T1	41·70 ± 0·64	ef	20·98 ± 0·74	def	26·68 ± 1·01	defg	49·99 ± 0·64	a
NR	HN	T2	43·31 ± 0·92	fg	22·58 ± 0·94	f	28·40 ± 1·22	fgh	50·83 ± 1·49	ab
NMR	LN	T1	41·97 ± 0·73	ef	22·50 ± 0·93	f	27·45 ± 1·13	efg	53·89 ± 0·93	bc
NMR	LN	T2	45·28 ± 1·26	g	25·20 ± 0·91	g	31·14 ± 0·89	h	57·88 ± 1·40	d
NMR	HN	T1	45·05 ± 0·95	g	22·24 ± 0·90	ef	28·22 ± 0·70	fg	52·61 ± 1·54	abc
NMR	HN	T2	47·82 ± 0·87	h	25·06 ± 0·75	g	29·46 ± 1·36	gh	53·91 ± 1·45	bc
(b) Variable value = P concentration (mg g−1 dry matter)
Factors					Variable			Variable			Variable			Variable
A	B	C	Leaf P	Tukey-t	Stem P	Tukey-t	Root P	Tukey-t	Nodule P	Tukey-t
N	LN	T1	1·59 ± 0·06	a	1·42 ± 0·07	a	1·69 ± 0·04	a
N	LN	T2	1·60 ± 0·04	a	1·41 ± 0·04	a	1·68 ± 0·07	a
N	HN	T1	1·71 ± 0·04	ab	1·55 ± 0·08	abc	1·73 ± 0·04	a
N	HN	T2	1·72 ± 0·05	ab	1·54 ± 0·12	abc	1·73 ± 0·08	a
NM	LN	T1	2·23 ± 0·05	de	2·11 ± 0·09	gh	2·20 ± 0·09	cd
NM	LN	T2	2·65 ± 0·09	gh	2·67 ± 0·10	i	2·79 ± 0·10	f
NM	HN	T1	2·05 ± 0·12	cd	1·84 ± 0·06	def	2·17 ± 0·09	cd
NM	HN	T2	2·33 ± 0·10	ef	1·97 ± 0·05	efg	2·24 ± 0·10	d
NR	LN	T1	1·79 ± 0·05	ab	1·54 ± 0·08	abc	1·81 ± 0·04	ab	3·84 ± 0·09	b
NR	LN	T2	2·08 ± 0·09	d	1·66 ± 0·06	bcd	1·99 ± 0·05	bc	4·49 ± 0·23	c
NR	HN	T1	1·77 ± 0·08	ab	1·67 ± 0·05	bcd	1·78 ± 0·07	a	3·04 ± 0·15	a
NR	HN	T2	1·86 ± 0·06	bc	1·77 ± 0·03	cde	1·79 ± 0·05	ab	3·85 ± 0·21	b
NMR	LN	T1	2·45 ± 0·13	efg	2·35 ± 0·12	h	2·45 ± 0·09	e	4·91 ± 0·09	cd
NMR	LN	T2	2·87 ± 0·07	h	2·93 ± 0·14	j	2·93 ± 0·05	f	5·25 ± 0·09	d
NMR	HN	T1	2·28 ± 0·06	de	2·06 ± 0·11	fg	2·24 ± 0·60	d	3·68 ± 0·15	b
NMR	HN	T2	2·51 ± 0·07	fg	2·15 ± 0·08	gh	2·34 ± 0·10	de	4·73 ± 0·26	c

Values are means ± s.e, n = 8.

Different letters indicate significant differences assessed by Tukey HSD test (P < 0·05) after performing three-way ANOVA with residual estimation.