Variability of Soil Micronutrients Concentration along the Slopes of Mount Kilimanjaro, Tanzania

Table 1

Calibration results of soil properties on the southern slopes of Mount Kilimanjaro, Tanzania.

Soil property	Number of principal components	Calibrations
		RMSEC	-squared
Fe (mgkg^−1)	5	0.54	0.31
Mn (mgkg^−1)	5	0.74	0.34
Zn (mgkg^−1)	5	0.57	0.46
B (mgkg^−1)	5	0.76	0.78
Cu (mgkg^−1)	5	0.90	0.32
Soil pH	5	0.06	0.93

Note. Fe: iron; Mn: manganese; Zn: zinc; B: boron; and Cu: copper.