Table 6.

Relative distribution of N and C derived from pea rhizodeposition in soil and triticale at the end of a 105-day greenhouse pot experiment; transfer paths: ADR = AMF, diffusion, and root contact between pea and intercrop; AD = AMF and diffusion; A = only AMF; CV = mean coefficient of variation between replicate pots (n = 6); probability values of a two-way ANOVA, using pea variety and transfer path treatment as factors, NS = not significant.

Varieties	Transfer	NdfR	% of NdfR in				CdfR	% of CdfR in
	paths	(% pea-N)	Soil Na	MBN	Inorganic N	Triticale	(% pea-C)	SOCa	MBC	Extractable C	Triticale
Frisson + triticale	ADR	17.5	92.0	5.4	0.18	8.1	16.1	94.4	6.2	2.8	5.7
Frisson	AD	7.2	91.2	19.7	0.26		12.3	67.2	7.1	3.2
Frisson	A	6.9	86.4	15.2	1.03		9.8	64.0	8.2	3.7
Triticale	AD		3.1	1.1	0.02	5.7		31.4	0.2	0.1	1.4
Triticale	A		6.0	0.6	0.01	7.6		32.5	1.5	0.7	3.5
P2 + triticale	ADR	16.4	94.4	9.4	0.16	5.6	14.0	97.8	11.0	5.2	2.2
P2	AD	7.1	83.3	11.9	0.58		9.7	56.4	4.2	1.9
P2	A	11.6	92.6	10.4	0.29		13.8	69.0	3.7	1.7
Triticale	AD		9.5	2.1	0.07	7.2		42.1	0.2	0.1	1.5
Triticale	A		1.2	0.9	0.01	6.2		29.1	0.0	0.0	1.9
Probability values
Plant		NS	< 0.01	< 0.01	< 0.01	NS	NS	< 0.01	< 0.01	< 0.01	NS
Transfer path		0.01	NS	< 0.01	0.02	NS	NS	NS	< 0.01	< 0.01	NS
Plant × transfer path		NS	< 0.01	< 0.01	< 0.01	NS	NS	< 0.01	< 0.01	< 0.01	NS
CV (± %)		39	44	69	79	53	29	14	76	78	140

^aIncluding MBN and 0.5 K₂SO₄ extractable inorganic N or MBC and 0.5 K₂SO₄ extractable organic C from non-fumigated soils.