Peat can store nutrients although it is not fertile itself.

Tubers are various types of modified plant structures that are enlarged to store nutrients.

Some secondary cell walls store nutrients, such as those in the cotyledons and the endosperm.

Plants are able to store nutrients in their shoots and bulb.

Storing excess nutrients and returning some of the nutrients to the bloodstream.

The ability of wetland systems to store nutrients and trap sediment is highly efficient and effective but each system has a threshold.

These South African plants are not bulbs; they have fleshy roots that can store water and nutrients for long periods of drought.

But presumably, it's being taken care of by this fungus, storing water and nutrients in its fleshy rhizomes.

Many herbaceous plants have extensive roots to store water and nutrients.

Some microbes store soluble nutrients such as nitrate in vacuoles.