Table 10 Element composition of spinach samples (ppb)
Group | Sample | P (ppb) | Zn (ppb) | Ca (ppb) | Fe (ppb) | Cu (ppb) | Pb (ppb) | Mg (ppb) | Mn (ppb) | K (ppb) | Na (ppb) |
|---|---|---|---|---|---|---|---|---|---|---|---|
Control | 1 | 2.80 | 1.31 | 42.14 | 1.29 | 0.11 | 0.07 | 88.26 | 0.25 | 311.08 | 14.36 |
2 | 2.48 | 0.71 | 33.23 | 0.62 | – 0.02 | 0.08 | 32.94 | 0.09 | 350.58 | 18.07 | |
3 | 2.59 | 0.56 | 46.23 | 0.76 | 0.20 | 0.06 | 33.95 | 0.11 | 301.86 | 21.93 | |
Average | 2.62 | 0.86 | 40.53 | 0.89 | 0.09 | 0.07 | 51.72 | 0.15 | 321.17 | 18.12 | |
Experiment | 1 | 1.18 | 0.34 | 17.35 | − 0.06 | − 0.56 | − 0.22 | 19.57 | 0.36 | 307.76 | 36.35 |
2 | 1.47 | 0.68 | 47.85 | 1.20 | 0.25 | 0.05 | 44.64 | 0.29 | 288.81 | 23.56 | |
3 | 2.52 | 0.72 | 73.62 | 0.80 | − 0.03 | 0.08 | 60.06 | 0.33 | 319.71 | 23.35 | |
Average | 1.72 | 0.58 | 46.27 | 0.65 | − 0.11 | − 0.03 | 41.42 | 0.32 | 305.43 | 27.75 |