Heavy metals 21 Days 42 Days
Mean (mg/kg) Standard deviation Mean (mg/kg) Standard deviation
Fe 281.487 81.089 486.123 90.528
Mn 37.188 6.753 67.129 16.899
Zn 22.099 5.703 51.623 19.755
Cu 0.001 0.000 0.001 0.000
Table 4: Mean levels of heavy metals in treatment four at 21 and 42 days after transplanting.