Status
Not open for further replies.
Those numbers look fairly accurate. They do not exist in a lab though. The majority of that iron is not plant available. It is dependent on pH, bacterial action, OM content, depth, temperature... etc. Same for most nutrients, there is moreP in soils than every plant in the world together could use in hundreds of years, but only a tiny fraction is in plant available form.
once again, the key is a thriving community
 
here is what that argument looks like for nitrogen.....

Picture1.png


plant available forms are the last two on the list.
 
Status
Not open for further replies.
Back
Top