A crop's grain storage of wet-deposited ¹³⁴Cs and ⁸⁵Sr was dynamically modelled.

Tracey was extended to describe element cycling in the atmosphere-plant-soil system.

Grain storage's sensitivity for wheat's and radionuclides' properties was analysed.

The growth stage at time of deposition determines storage and governing factors.

Grain interception capacity best predicts ¹³⁴Cs and ⁸⁵Sr storage at late depositions.