Fig. 1From: Effect of passivator DHJ-C on the growth and cadmium accumulation of Brassica napus in Cd-contaminated soilEnzyme activity in rhizosphere soil of four-leaf seedling oilseed rape. a urease activity; b sucrase activity. Significance analysis was conducted by LSD multiple comparison analysis. Different lower case letters above the column indicate significant difference among treatments (p < 0.05). Error bars indicate standard error based on three independent biological replicatesBack to article page