Effects of Nanoscale Carbon Black Modified by HNO₃ on Immobilization and Phytoavailability of Ni in Contaminated Soil

Figure 6

Effect of MCB on the biomass of ryegrass shoots and Ni takeup by ryegrass shoots. Ni²⁺ was added to soil at the ratio of 100 mg·kg⁻¹ and the MCB was added at the ratio of 0, 0.5%, and 1%, respectively.