Natural Nitrogen, Nitrate and oxides in the air.
• Makes grass and other “Green” things grow fast!
• Occurs naturally. It’s 78% of our atmosphere!
• Lightning MAKES GRASS GROW.
• Is produced and put into the air, soil and clouds from such happenings as Fire, Industry, Dust, Rain and sewage plant exposure.
• Most commonly blamed for over fertilizing by technicians but it happens naturally at unregulated times and amounts. Over fertilizing will turn grass yellow and can kill it.
• Present in animal urine.