permaculture

[Gasper Family Farm <farmer1@gasperfarm.com>]

Are we not facing a peak in the supply of mined phosphate? This is one of if 
not they key yield and plant health limiting nutrient; and also the hardest 
one to get outside the mine. Other than the mandatory recycling of 
phosphorus from humanure, are their any other permanent solutions for 
sourcing phosphorous for the farm (on a broad acre scale)?

Pete

On 05/11/2012 07:54 PM, Lawrence F. London, Jr. wrote:
> It should seek to
> reduce off farm inputs. Natural, mined phosphate and other minerals will
> likely be needed from time to time as crops deplete levels of nutrients
> needed for healthy livestock and plant production. If enough acreage is
> available the other major nutrients can for the most part be generated
> on site and later recycled.