A pot experiment was conducted to evaluate the impact of different P sources when applied at recommended dose and double that amount on the accumulation of F in the wheat crop. Composting of organic wastes with the addition of rock phosphate led to increase in the P availability from rock phosphate as evidenced by dry matter production and N and P uptake by the crop. There was no significant effect of different P sources on the F content of grain and straw. On an average the F content of grain and straw was 0.45 and 4.61 mg kg−1, respectively. Such low concentrations do not pose any hazard to human and animal health. However, accumulation of F in soil and plants due to long-term application of phosphatic fertilizers needs to be assessed.
