Table 3.

Summary statistics for measured and simulated grain N content, 1968–2012, for the Broadbalk wheat experiment. The measured values for grain N were from Section 1 only (see 2.9.1).

Plot no.	Measured		Simulated
	Mean kg N ha− 1	Standard deviation/ kg N ha− 1	Mean kg N ha− 1	Standard deviation/ kg N ha− 1	RMSE (%)	Correlation
3	16.33	7.23	19.76	3.1	42.54	0.57
5	18.48	6.36	20.07	3.15	31.58	0.47
6	46	9.12	47.69	5.79	23.42	0.03
7	76.69	16.21	80.44	9.03	23.58	0.11
8	99.03	21.31	110.25	15.84	25.44	0.29
9	117.91	20.91	126.27	23.92	23.32	0.32
15	122.99	28.03	124.05	25.96	25.17	0.35
16	121.34	37.12	113.62	32.82	22.98	0.71
2.1	128.08	23.56	129.28	27.52	21.27	0.44
2.2	86.83	18.58	98.09	17.27	27.04	0.34