Legumes could be grown with hyperaccumulator plants to enhance soil quality and fertility in the context of agromining crops (nickel phytomining).

Among the factors that create the serpentine syndrome, Ni toxicity is the most difficult to correct through soil amendments or practices.

No previous study has tested whether lentils (Lens culinaris) are able to fix atmospheric N₂ on nickel-rich soils.

The ability of lentils to form functional nodules to fix nitrogen is negatively affected even at very low levels of available Ni; it is completely suppressed when ≈50 mg DTPA-Ni kg⁻¹ is found in the soil.

The use of lentils as a N-provider to the agromining crop must be limited to ultramafic soils with low or moderate Ni availability.