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

Environmental Systems Research

Table 6 Residual effects of co-applied biochar with compost and/or NPK collard plant canopy, plant height, plant stem and the number of leaves at 15 DAT

Treatment	Plant canopy (cm)	Plant height (cm)	Plant stem (cm)	Number of leaves
CTRL	34.10a	23.58c	0.38a	7.28a
CM	34.20a	30.62a	0.44a	7.86a
NPK	35.73a	24.64bc	0.40a	7.60a
BC1	38.65a	26.64a	0.45a	7.69a
BC2	33.36a	30.64ab	0.42a	7.84a
BC1 + CM	38.75a	31.01a	0.45a	8.38a
BC2 + CM	39.84a	32.42a	0.48a	7.68a
BC1 + NPK	39.53a	30.47a	0.47a	7.81a
BC2 + NPK	42.10b	32.88a	0.70a	9.66a
Significant^X	*	***	NS	NS
SED^Y	2.66	2.01	0.13	1.32

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