Table 2.

Results of the nutrient amendment experiment showing directed comparisons between each treatment and the unamended control, based on all of the time points.

	Estimate (pmol leu l−1 h−1)	Standard error	t-value	P-value	95% Confidence limits
C	−0.03	0.008	−3.64	< 0.01	−4.4	−1.3
N	0.006	0.008	0.71	0.48	−1.0	2.1
P	0.03	0.008	3.92	< 0.001	1.5	4.7
CN	−0.003	0.008	−0.42	0.67	−1.9	1.2
NP	0.04	0.008	5.05	< 0.001	2.4	5.5
CNP	0.03	0.008	4.09	< 0.001	1.6	4.8

“Estimate” is the estimated difference between the treatment and control. Negative estimates indicate control > treatments.