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 |