Table 3. The photosynthetic parameters of S. thea grown under five different fertilization treatments.

Treatment	V_cmax (µmol m⁻² s)	J_max (µmol m⁻² s)	R_D (µmol m⁻² s)
Control	16.81±1.74^a	24.07±4.75^a	1.02±0.24^a
0.5 g·L⁻¹	16.88±1.24^a	28.08±2.75^a	0.89±0.01^a
1.0 g·L⁻¹	27.17±0.63^b	45.61±2.53^b	1.51±0.01^b
1.5 g·L⁻¹	34.68±2.17^c	53.06±9.64^b	1.62±0.14^b
2.0 g·L⁻¹	27.53±1.14^b	46.63±2.39^b	1.69±0.08^b

Each value is expressed as the means ± SD (n = 3).
Different letters indicate values significantly different by DMRT (Duncan's Multiple Range Test) at 5％ level (p < 0.05).