Table 2.

Agronomical nitrogen use efficiency (NUE) and N partial factor productivity according to the 10 N application regimens as detailed in Table 1.

	Agronomical NUE (g grain g N−1)				N partial factor productivity (g grain g N−1)
	Meseta	Jallon	Smooth	P	Meseta	Jallon	Smooth	P
N130a	20.12	13.89	22.38	0.057	46.93 a	46.69 a	57.06 b	0.017
N130b	21.69	19.13	20.91	0.857	48.51	51.94	55.58	0.376
N150a	18.09	16.67	17.65	0.946	41.34	45.10	47.69	0.402
N150b	17.75	20.44	20.05	0.381	40.99 a	48.87 b	50.10 b	0.006
N150c	20.89	21.11	23.00	0.855	44.13	49.54	53.05	0.171
N170a	17.84	11.97	18.24	0.053	38.35 a	37.06 a	44.75 b	0.028
N170b	18.90	15.50	16.80	0.479	39.41	40.58	43.31	0.381
N170c	19.51	17.96	19.43	0.420	40.01 a	43.04 ab	45.94 b	0.009
N170d	17.28	18.61	23.45	0.128	37.78 a	43.69 ab	49.96 b	0.011

N0 is used for reference in the calculation of each and as such is not shown. Treatments in bold indicates P < 0.05.