Table 1 Available and total Hg ratios in the soils before transplant and after harvest of potato.

From: Potato (Solanum tuberosum L.) can be grown safety on human consumption in slight Hg-contaminated soils across China mainland

pH

soil location

ratios (before planting)

ratios (after harvest)

CK (%)

LWHg (%)

HGHg (%)

CK (%)

LWHg (%)

HGHg (%)

<6.5

Guangdong

0.70 ± 0.07

0.55 ± 0.23

0.46 ± 0.03

1.02 ± 0.20

0.46 ± 0.06

0.58 ± 0.08

Anhui

0.82 ± 0.25

0.48 ± 0.07

0.49 ± 0.19

1.11 ± 0.51

0.49 ± 0.19

0.28 ± 0.07

Hubei

1.35 ± 0.21

0.56 ± 0.17

0.49 ± 0.08

0.68 ± 0.11

0.48 ± 0.09

0.31 ± 0.01

Heilongjiang

0.47 ± 0.10

0.51 ± 0.03

0.52 ± 0.04

1.05 ± 0.28

0.43 ± 0.06

0.33 ± 0.05

Hainan

0.91 ± 0.20

0.51 ± 0.11

0.38 ± 0.04

1.10 ± 0.36

0.50 ± 0.08

0.22 ± 0.06

average

0.85 ± 0.16 aA

0.52 ± 0.12aB

0.47 ± 0.14aB

0.99 ± 0.30 aA

0.47 ± 0.09aB

0.34 ± 0.05aB

6.5-7.5

Hunan

0.79 ± 0.23

0.35 ± 0.14

0.26 ± 0.02

0.68 ± 0.57

0.31 ± 0.06

0.25 ± 0.05

Zhejiang

0.86 ± 0.48

0.49 ± 0.07

0.25 ± 0.03

0.93 ± 0.59

0.25 ± 0.06

0.14 ± 0.03

Yunan

0.81 ± 0.31

0.50 ± 0.10

0.24 ± 0.06

0.91 ± 0.27

0.38 ± 0.04

0.17 ± 0.04

Jiangsu

0.92 ± 0.13

0.37 ± 0.02

0.26 ± 0.07

1.11 ± 0.08

0.29 ± 0.03

0.26 ± 0.03

average

0.85 ± 0.30 aA

0.43 ± 0.33aB

0.25 ± 0.05bC

0.91 ± 0.38 aA

0.31 ± 0.05abB

0.20 ± 0.04bB

>7.5

Jilin

1.01 ± 0.48

0.13 ± 0.04

0.13 ± 0.03

1.23 ± 0.11

0.16 ± 0.04

0.11 ± 0.02

Beijing

1.10 ± 0.09

0.19 ± 0.04

0.15 ± 0.04

1.28 ± 0.41

0.18 ± 0.05

0.11 ± 0.02

Sichuan

0.44 ± 0.16

0.35 ± 0.04

0.18 ± 0.01

0.75 ± 0.40

0.25 ± 0.05

0.13 ± 0.02

Xinjiang

1.08 ± 0.55

0.27 ± 0.10

0.20 ± 0.04

1.05 ± 0.31

0.22 ± 0.08

0.24 ± 0.07

Hebei

1.05 ± 0.19

0.39 ± 0.05

0.14 ± 0.03

1.18 ± 0.45

0.10 ± 0.05

0.09 ± 0.05

Shaanxi

0.52 ± 0.22

0.41 ± 0.02

0.16 ± 0.02

0.89 ± 0.27

0.30 ± 0.11

0.10 ± 0.01

Henan

1.22 ± 0.24

0.29 ± 0.01

0.20 ± 0.02

1.44 ± 0.10

0.22 ± 0.08

0.11 ± 0.01

Shanxi

1.05 ± 0.41

0.15 ± 0.02

0.16 ± 0.03

0.93 ± 0.59

0.27 ± 0.03

0.11 ± 0.05

Ningxia

1.46 ± 0.60

0.14 ± 0.08

0.14 ± 0.02

1.37 ± 0.17

0.35 ± 0.12

0.14 ± 0.04

average

0.99 ± 0.32 aA

0.26 ± 0.05bB

0.16 ± 0.03cB

1.13 ± 0.32 aA

0.23 ± 0.07bB

0.13 ± 0.07bB

  1. *Mean ± SD, different small letters within the same column and different capital letters within the same row for each treatment indicate a significant difference at p < 0.05 by Student’s multiple range tests.
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