Make and Recycle Fertilizer Sustainably with Ollan Herr
Make and Recycle Fertilizer Sustainably
(Saturday 06 July 2019)
Phosphorus and Potash are mineral resources that take nature millions of years to make.
To make more fertilizer for the growing world population these minerals are extracted from mines.
But at current extraction rates phosphorus is very likely to become very expensive.
Ammonia and Nitrates are another element of fertilizer.
This is made by burning coal and natural gas which are responsible for green house gas emissions.
Industrial food systems around the world are therefore unsustainable and very polluting.
At present we waste these 3 nutrients in urine and humanure through our septic tanks.
Learn how to recycle these nutrients and turn it into compost for growing food at home.
Ollan will enlighten you on these natural systems.
Course Code: MRFS