Assessing the Potential of Biochar for Improving Soil Physical Properties and Tree Growth

Table 2

Casuarina mean height under different biochar application rates and assessment periods.

Seedling height ± SE (m)	Growth period (months)
Treatment	3	6	9	12
Control	0.75 ± 0.04b	1.15 ± 0.03b	1.77 ± 0.06b	2.77 ± 0.07b
Biochar 2.5 tons/ha	0.89 ± 0.09a	1.42 ± 0.13a	2.18 ± 0.17a	3.24 ± 0.27a
Biochar 5.0 tons/ha	0.85 ± 0.07ab	1.36 ± 0.17ab	2.07 ± 0.22a	3.18 ± 0.14a
Biochar 7.5 tons/ha	0.89 ± 0.06a	1.43 ± 0.07a	2.13 ± 0.14a	3.33 ± 0.06a
f(3,8)	3.02	3.95	4.19	7.21
	0.09 n.s.	0.05	0.05	0.01

Note: (i) values denoted by the same letter along the column are not significantly different at , (ii) n.s. means not significant, and (iii) n = 12.