Residual effects of corncob biochar on tropical degraded soil in central Uganda

Environmental Systems Research

Table 7 Residual effects of co-applied biochar with compost and/or NPK collard plant canopy, plant height, plant stem and number of leaves at 30 DAT

Treatment	Plant canopy (cm)	Plant height (cm)	Plant stem (cm)	Number of leaves
CTRL	44.73b	33.85a	0.63b	10.69a
CM	53.53ab	41.08a	0.79ab	10.78a
NPK	51.98ab	36.34a	0.70ab	10.56a
BC1	55.19ab	42.43ab	0.77ab	11.28a
BC2	56.19ab	43.581ab	0.81ab	10.75a
BC1 + CM	57.50ab	44.58ab	0.79ab	10.28a
BC2 + CM	59.05a	45.98b	0.82ab	10.56a
BC1 + NPK	59.75a	44.99ab	0.84ab	10.88a
BC2 + NPK	63.25a	46.19b	0.94a	10.63a
Significant^X	**	***	*	NS
SED^Y	3.83	2.17	0.08	0.47

Significant^X and SED^Y effects were obtained from one-way analysis of variance: *, **, ***significant at P < 0.05, P < 0.01, and P < 0.001, respectively. See Table 2 for a description of the treatments; Means followed by the same letter in each column are not significantly different at p ≤ 0.05 using Tukey HSD