Site

Farm ID

Vegetable type

Zn

Cu

Fe

Mn

mg/kg

Kilombero

Mgudeni 1

Chinese cabbage (Brassica chinensis L.)

70.14

0.08

1230.78

36.06

Mgudeni 2

Sweet potato leaves (Ipomea batatas L.)

12.57

0.08

254.64

35.10

Mgudeni 3

Amaranths (Amaranthus hybridus L.)

65.67

0.08

970.06

72.93

Mang’ula 1

Kale (Brassica oleracea L.)

49.53

0.08

1780.60

42.30

Mangula 2

Amaranths (Amaranthus hybridus L.)

34.32

0.07

319.57

51.87

Mean

46.45

0.08

911.13

47.65

Hombolo

Bwawani 1

Sweet potato leaves (Ipomea batatas L.)

29.20

14.17

158.85

22.18

Bwawani 2

Chinese cabbage (Brassica chinensis L.)

13.14

6.67

569.86

87.77

Bwawani 3

Swiss chard (Beta vulgaris subsp vulgaris)

25.08

11.17

276.84

90.64

Bwawani 4

Kale (Brassica oleracea L.)

18.26

4.87

152.95

44.68

Bwawani 5

Chinese cabbage (Brassica chinensis L.)

30.55

5.92

324.04

92.32

Zepisa 1

Amaranths (Amaranthus hybridus L.)

51.02

7.27

254.20

89.44

Ipala

Chinese cabbage (Brassica chinensis L.)

36.45

5.77

184.41

102.13

Mean

29.10

7.97

274.45

75.59

Ihumwa

Chididimo 1

Kale (Brassica oleracea L.)

91.90

12.58

714.202

137.17

Chididimo 2

Mnavu (Solanum nigram L.)

100.43

37.36

861.27

122.78

Chididimo 3

Amaranths (Amaranthus hybridus L.)

134.54

32.85

1660.29

117.99

Chididimo 4

Swiss chard (Beta vulgaris subsp vulgaris)

85.86

30.60

581.86

151.56

Chididimo 5

Chinese cabbage (Brassica chinensis L.)

106.47

52.37

655.39

143.17

Shuleni 1

Amaranths (Amaranthus hybridus L.)

110.09

20.84

1395.59

135.97

Shuleni 2

Sweet potato leaves (Ipomea batatas L.)

57.78

18.59

905.39

321.82

Shuleni 3

Sweet potato leaves (Ipomea batatas L.)

58.14

14.83

660.29

289.45

Shuleni 4

Chinese cabbage (Brassica chinensis L.)

119.26

12.58

1655.39

140.77

Shuleni 5

Kale (Brassica oleracea L.)

118.91

13.33

1429.90

188.73

Mean

98.44

24.60

1051.96

174.94