Table 1. Effect of different fertilization modes on rice yield under the rice-crab culture system.

Treatment	Fertilization rate (kg·hm-2)	Nitrogen rate (kg·hm-2)	Yield (kg·hm-2)
CK	0	0	5720 ± 1869b
FP1	540	300	8693 ± 107a
FP2	379.5	210	9377 ± 821a
OPT	465	270	10 040 ± 767a

CK: no fertilization; FP1: conventional fertilization, inorganic fertilizer; FP2: one-time fertilization, organic-inorganic compound fertilizer; OPT: one-time fertilization, inorganic fertilizer. Different letters indicate statistical significance at the P = 0.05 level.