According to organic gardening guru Mike Greenfield, “Organic urea fertilizer can be easily made at home by fermenting urine with dolomite lime.”  While it may sound unappealing, this simple DIY fertilizer works wonders for gardens and houseplants. The fermentation process neutralizes the salts and ammonia from the urine into a gentle, nitrogen-rich feed. For pennies … Continue reading Green Gardening Guide: How To Make Organic Urea Fertilizer