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Composting reduces antibiotics in manure


September 16, 2013 – Conventional livestock manure used to fertilize organic crops can contain unwanted antibiotics and chemicals, but time and composting can greatly reduce those levels, experts say.

Several antibiotics found in hog and turkey manure were found to be taken up by vegetable crops and stored in the plant tissue, said Satish Gupta, a soil science professor at the University of Minnesota. READ MORE