An anonymous reader writes "Using human urine as a fertilizer produces bumper crops of tomatoes that are safe to eat, scientists have found. Their research was published last month in the Journal of Agricultural and Food Chemistry and may help cheaply boost crops in the developing world. From the article, 'Yields for plants fertilized with urine quadrupled and matched those of mineral-fertilized plants. The urine-fertilized tomatoes also contained more protein and were safe for human consumption.'"
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