الفهرس 
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Abstract
The sudy aims to investigate the response of Senna occidentalis, Link to nitrogenous nutrition and its role in remediating some polluted soils with heavy metals. Its is recommended with treatment of biofertilizer with ammonium sulfate (20.5 % N) at the rate of 2 g/ plant / month for two months then raised to 4 g / plant/ month to get the highest values for most of the vegetative growth characteristics and chemical constituents of the plant economically. The results showed that Senna occidentalis plants can remediate Ni polluted soils, but they cann’t remediate Zn polluted ones