Table 4 Reduction rate of cadmium transport coefficient under different Biochar applications.

From: Passivation effect of modified biochar on cadmium in mining contaminated soil

Research

Crops

Biochar

Application rate

TF reduction rate(%)

This Research

Cabbage

potassium-permanganate-modified

6 g/kg

33.9

Fu36

Rape

Cotton stalk

8%

20.66

Wang37

Rape

Rice husk

5%

20.21

Chen38

Rice

Iron-based

2 249 kg/hm2

33.30

Fu36

Indian mustard

Cotton stalk

8%

21.32

  1. Note: This table refers to Su39 et al. TF reduction rate is Reduction in TF compared to blank control. Different studies have shown varying degrees of effectiveness in reducing cadmium accumulation in vegetables, which is related to crop variety, cadmium content in the base soil, type of biochar, application rate, and other factors.
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