TABLE 1.

Description of field bioreactor treatments

Treatment group	Amendment(s)		Inoculant
	2,4-D (500 μg g of dry soil−1)	Cadmium (100 μg g of dry soil−1)	E. coli D11 (106 CFU g of dry soil−1)	R. eutropha JMP134 (106 CFU g of dry soil−1)
1	X
2	X		X
3	X			X
4	X	X
5	X	X	X
6	X	X		X