Table 1. The growth of root collar diameter and height and H/D ratio of container seedlings of Hovenia dulcis grown at six different fertilization treatments.

Fertilization treatment (g·L⁻¹)	Height		Root collar diameter		H/D ratio (cm·mm⁻¹)
Fertilization treatment (g·L⁻¹)	Growth (cm)	Relative growth rate (cm·day⁻¹)	Growth (mm)	Relative growth rate (mm·day⁻¹)	H/D ratio (cm·mm⁻¹)
Control	^z9.66±1.76^d	0.051±0.013^d	2.69±0.34^d	0.017±0.004^d	3.63±0.70^c
0.5	81.50±5.76^c	0.783±0.056^c	5.11±0.38^c	0.042±0.004^c	16.05±1.95^ab
1.0	102.25±4.44^b	0.989±0.049^b	5.94±0.57^b	0.051±0.006^b	17.37±1.90^a
1.5	109.94±7.43^a	1.066±0.082^a	6.48±0.62^a	0.056±0.007^a	17.16±2.47^ab
2.0	108.38±7.68^a	1.050±0.083^a	6.69±0.43^a	0.057±0.005^a	16.27±1.58^ab
2.5	99.25±10.23^b	0.962±0.094^b	6.29±0.80^ab	0.054±0.008^ab	15.88±1.41^b
F-value	514.01^***	514.29^***	121.20^***	118.11^***	146.52^***

Note. Mean±SD(n=16).
P < 0.001. F-values are statistical significance in one-way ANOVA. Different letters on the each columns indicate statistical differences at the 5% levels by Duncan’s multiple range test.