3. Peak P: no substitute?
Like oil and other natural resources, the rate of production of economically available phosphate reserves will eventually reach a peak, followed by a steep decline and subsequent ongoing decline of productivity. An analysis basedon industry data shows the global peak P is expected to occur around 2034 (see Peak Phosphorus).8
I'd like to see wastewater treatment plants work on seperation of elements within the system to be re-cycled back into our soil> food> bodies. It's going to have to become a standardized practice.
I have a question about urine:
As I'm a little worried about what comes out of many people's "organic waste" garbage cans (plastic, heavy metals from non-organic fruit), should I be worried about what comes out of their bodies as well?william
John Polk wrote:There you go: the perfect way to put out the fire in your fire pit!
Wood ash is one of the most under utilized free resources around. It is one of the richest natural sources of K available. It has 2-3 times more K than barnyard manures. Being alkaline, it will help sweeten a sour soil. Peach trees absolutely love it!