Prediction of Soil Water-Soluble Organic Matter by Continuous Use of Corn Biochar Using Three-Dimensional Fluorescence Spectra and Deep Learning

Table 2

Biochar particle composition.

Particle components (%)
Soil organic carbon (SOC) (g/kg)	Ca (g/kg)	K (g/kg)	Mg (g/kg)	N (g/kg)	O (g/kg)	P (g/kg)	Si (g/kg)	pH	<0.1 mm	0.1–2 mm	>2 mm
598	3	17.0	2	7.85	166	1.327	60	8.69	15.0	60.2	24.8