Agronomic Potential of Avocado-Seed Biochar in Comparison with Other Locally Available Biochar Types: A First-Hand Report from Ethiopia

Table 2

Effect of pyrolysis temperature and feedstock type on biochar EC, CEC, OC, and CaCO₃.

Precursor/feedstock	Pyrolysis T; (°C)	EC; (dS m^−1)	CEC; (meq/100 g)	OC; (%)	CaCO3; (%)
Avocado seed	450	2.86 ± 0.26	34.25 ± 1.28	59.40 ± 2.59	3.19 ± 0.59
	550	0.34 ± 0.01	25.06 ± 1.54	59.77 ± 2.61	7.47 ± 0.54
Bamboo	450	6.59 ± 0.28	21.67 ± 1.43	48.18 ± 0.72	5.47 ± 0.65
	550	6.98 ± 0.41	17.03 ± 1.66	58.37 ± 1.04	5.22 ± 0.69
Corncob	450	0.12 ± 0.01	24.10 ± 1.46	75.92 ± 1.40	6.43 ± 0.31
Coffee husk	450	31.63 ± 0.05	22.90 ± 1.32	58.66 ± 1.11	17.14 ± 0.93

Values are mean ± standard deviation of three replicates.