Phosphate fertilizer is one of the most important sources of exposure due to radiation and different types of radioactive nuclides are present in it. Fertilizers are commonly used in agricultural worldwide to enhance the crop yield. Naturally occurring radioactive elements are present in the plants, transferred to human beings via food products which are the main source of continuous radiation exposure. A control study has been carried out on the plants grown in earthen pots. The alpha track densities have been measured using solid state nuclear track detectors (SSNTD), a very sensitive detector for alpha particles. The alpha track densities (T cm-2d-1) are measured in plants after plantation. The result shows that alpha track densities vary with nature of fertilizers added to the soil and an increase has also been observed with time.