Calibration Transfer of Soil Total Carbon and Total Nitrogen between Two Different Types of Soils Based on Visible-Near-Infrared Reflectance Spectroscopy

Table 7

Comparison of different calibration transfer algorithms for the modified result of TN concentrations.

The number of standard set	First Sample			Second Sample
	Result	WMPDS-S/B	Add samples	Result	WMPDS-S/B	Add samples
10	rc	0.971	1.000	Errora (%)	7.52	33.28
	rp	0.851	0.421	Errorm (%)	20.34	81.10
	RPD	1.49	1.031	RMSEP	0.050	0.214
15	rc	0.971	0.975	Errora (%)	5.99	27.81
	rp	0.851	0.656	Errorm (%)	15.89	76.06
	RPD	1.49	1.069	RMSEP	0.042	0.176
20	rc	0.971	1.000	Errora (%)	6.38	25.30
	rp	0.851	0.594	Errorm (%)	17.18	63.36
	RPD	1.49	1.090	RMSEP	0.043	0.166
25	rc	0.971	1.000	Errora (%)	6.21	24.87
	rp	0.851	0.674	Errorm (%)	16.60	65.58
	RPD	1.49	1.186	RMSEP	0.042	0.168
30	rc	0.971	1.000	Errora (%)	6.55	23.68
	rp	0.851	0.707	Errorm (%)	16.57	64.82
	RPD	1.49	1.195	RMSEP	0.044	0.165