Table 1. Effects of kenaf source and ratio of kenaf:pine bark:sand (v/v/v) growth media on the height, width, shoot fresh weight, root rating, and media depth of Ilex crenata 'Compacta.'
Kenaf source	Media ratio (v/v/v)					Height	Width	Fresh weight	Root1 rating	Media depth
	Kenaf	:	Pine bark	:	sand
						(cm)	(cm)	(g)		(cm)
control	0	:	4	:	1	40.28	42.50	152.71	10.00	0.93
composted +N	1	:	3	:	1	44.57	43.21	176.00	10.00	1.06
composted +N	2	:	2	:	1	42.14	45.07	197.00	10.00	1.27
composted +N	3	:	1	:	1	39.43	47.07	185.28	10.00	2.10
composted +N	4	:	0	:	1	37.86	46.28	194.71	10.00	3.14
composted -N	1	:	3	:	1	42.00	45.71	184.57	9.71	0.90
composted -N	2	:	2	:	1	37.86	45.28	204.14	10.00	1.48
composted -N	3	:	1	:	1	41.00	45.71	195.14	9.86	2.14
composted -N	4	:	0	:	1	46.28	47.07	201.43	10.00	3.46
not composted coarse	1	:	3	:	1	39.71	42.43	164.85	10.00	1.20
not composted coarse	2	:	2	:	1	43.14	41.28	148.00	10.00	1.37
not composted coarse	3	:	1	:	1	44.28	42.71	180.86	9.86	1.81
not composted coarse	4	:	0	:	1	42.00	39.43	149.28	9.43	2.87
not composted fine	1	:	3	:	1	38.71	43.14	160.71	10.00	1.00
not composted fine	2	:	2	:	1	44.57	44.50	174.86	9.86	1.64
not composted fine	3	:	1	:	1	39.71	40.64	144.28	9.71	2.66
not composted fine	4	:	0	:	1	38.14	44.50	162.57	9.86	2.91
LSD = 0.052						--	4.41	30.44	0.30	0.43
Factorial analysis:
kenaf source (main effects)						NS	**	**	NS	NS
ratio (main effects)						NS	NS	NS	NS	**
linear						NS	NS	NS	NS	**
quadratic						NS	NS	NS	NS	**
cubic						NS	NS	NS	NS	NS
kenaf source x ratio						NS	NS	NS	**	**
Contrasts:
composted (c) vs not composted (nc)						NS	**	**	*	NS
c vs control						NS	NS	**	NS	**
nc vs control						NS	NS	NS	NS	**
c +n vs control						NS	NS	**	NS	**
c -n vs control						NS	NS	**	NS	**
nc coarse vs control						NS	NS	NS	NS	**
nc fine vs control						NS	NS	NS	NS	**
1:3:1 vs control						NS	NS	NS	NS	NS
2:2:1 vs control						NS	NS	*	NS	**
3:1:1 vs control						NS	NS	*	NS	**
4:0:1 vs control						NS	NS	*	NS	**

¹Root rating -- 10=excellent, 0=very poor.
²**,*, NS = significant at the 1%, 5%, or nonsignificant, respectively.

Table 2. Effects of kenaf source and ratio of kenaf:pine bark:sand (v/v/v) growth media on the height, width, shoot fresh weight, root rating, and growth media depth of Rhododendron 'Sunglow.'
Kenaf source	Media ratio (v/v/v)					Height	Width	Fresh weight	Root1 rating	Media depth
	Kenaf	:	Pine bark	:	sand
						(cm)	(cm)	(g)		(cm)
control, pine bark	0	:	4	:	1	48.43	44.78	144.71	9.43	1.44
composted +N	1	:	3	:	1	47.00	46.64	157.14	9.57	1.60
composted +N	2	:	2	:	1	40.71	48.50	172.00	9.43	2.18
composted +N	3	:	1	:	1	45.86	45.43	167.14	9.57	2.96
composted +N	4	:	0	:	1	4.157	43.57	170.86	8.86	4.94
composted -N	1	:	3	:	1	42.71	43.86	133.71	9.28	2.00
composted -N	2	:	2	:	1	44.43	41.21	149.43	9.43	2.34
composted -N	3	:	1	:	1	43.00	43.71	148.57	9.43	3.56
composted -N	4	:	0	:	1	46.28	40.21	120.43	8.86	4.98
not composted coarse	1	:	3	:	1	43.71	40.43	120.14	9.28	1.73
not composted coarse	2	:	2	:	1	43.71	42.14	125.71	9.28	2.14
not composted coarse	3	:	1	:	1	39.28	37.57	115.28	8.43	2.77
not composted coarse	4	:	0	:	1	36.14	35.00	87.57	7.00	4.00
not composted fine	1	:	3	:	1	41.14	40.50	123.14	9.28	1.87
not composted fine	2	:	2	:	1	39.00	41.78	127.71	9.43	2.18
not composted fine	3	:	1	:	1	39.00	37.14	110.86	8.86	3.37
not composted fine	4	:	0	:	1	34.71	34.28	92.14	8.28	4.60
LSD = 0.052						6.24	4.18	21.81	0.92	0.40
Factorial analysis:
kenaf source (main effects)						**	**	**	**	**
ratio(main effects)						NS	**	**	**	**
linear						*	**	**	**	**
quadratic						NS	*	**	**	**
cubic						NS	NS	NS	NS	NS
kenaf source x ratioNS	NS	NS	NS	**
Contrasts
composted (c) vs not composted (nc)						**	**	**	**	**
c vs control						NS	NS	NS	NS	NS
nc vs control						**	**	**	*	**
c +n vs control						NS	NS	*	NS	**
c -n vs control						NS	NS	NS	NS	**
nc coarse vs control						**	**	**	*	**
nc fine vs control						**	**	**	NS	**
1:3:1 vs control						*	NS	NS	NS	*
2:2:1 vs control						**	NS	NS	NS	**
3:1:1 vs control						**	*	NS	NS	**
4:0:1 vs control						**	**	**	**	**

¹Root rating -- 10=excellent, 0=very poor.
²**,*, NS=significant at the 1%, 5%, or nonsignificant, respectively.

Table 3. Effects of kenaf source and ratio of kenaf:pine bark:sand (v/v/v) growth media pH. May 1994.
Kenaf source	Media ratio (v/v/v)					pH
	Kenaf	:	Pine bark	:	sand
control	0	:	4	:	1	5.68
composted +N	1	:	3	:	1	5.68
composted +N	2	:	2	:	1	5.59
composted +N	3	:	1	:	1	5.67
composted +N	4	:	0	:	1	5.53
composted -N	1	:	3	:	1	5.62
composted -N	2	:	2	:	1	5.38
composted -N	3	:	1	:	1	5.68
composted -N	4	:	0	:	1	5.80
not composted coarse	1	:	3	:	1	5.79
not composted coarse	2	:	2	:	1	5.89
not composted coarse	3	:	1	:	1	5.97
not composted coarse	4	:	0	:	1	6.06
not composted fine	1	:	3	:	1	5.70
not composted fine	2	:	2	:	1	5.99
not composted fine	3	:	1	:	1	5.89
not composted fine	4	:	0	:	1	5.90
LSD = 0.051						0.24
Factorial analysis:
kenaf source (main effects)						**
ratio (main effects)						**
linear						*
quadratic						NS
cubic						NS
kenaf source x ratio						*
Contrasts:
composted (c) vs not composted (nc)						**
c vs control						NS
nc vs control						*
c +n vs control						NS
c -n vs control						NS
nc coarse vs control						*
nc fine vs control						*
1:3:1 vs control						NS
2:2:1 vs control						NS
3:1:1 vs control						NS
4:0:1 vs control						NS

¹**, *, NS = significant at the 1%, 5%, or nonsignificant, respectively.

Table 4. Physical properties, pH, and electrical conductivity of growth media components prior to blending.
Media component	Bulk density	Pore space	Air space	Water holding capacity	pH	Electrical conductivity
	(g/cm3)	(percent)	(percent)	(percent)		(mmhos/cm)
Pine bark	0.23	48.5	29.0	19.5	4.52	0.07
Kenaf C +N1	0.07	57.0	23.0	34.0	4.12	1.99
Kenaf C -N1	0.08	55.0	23.5	31.5	6.00	0.23
Kenaf NC C1	0.08	75.0	56.0	19.0	5.52	0.13
Kenaf NC F1	0.07	57.0	31.5	25.5	5.40	0.14
Sand	1.78	33.5	4.0	29.5	6.56	0.02

¹C +N, C -N, NC C, and NC F - Composted with nitrogen, composted without nitrogen, not composted coarse, and not composted fine, respectively.