Currently, the effects of earthworm inoculation on cadmium-contaminated rice field remain unclear. In this study, four treatments were tested, including rice monoculture (CK), earthworm inoculation with low density (L, 30 g/m(2)), middle density (M, 60 g/m(2)), and high density (H, 90 g/m(2)). The pot and field experiment were conducted in Hunan Province, China. In the pot experiment, the H treatment significantly decreased the available cadmium concentration in 0 similar to 20 cm soil by 5.21% similar to 16.51%, and the M treatment significantly decreased in 0 similar to 10 cm soil by 7.29% s...
