Posted 12/25/2015 13:44 (#4986253 - in reply to #4986239) Subject: Soil biology for a start
Aberdeen MS
Take a peek at the series Loran posted up.
Any commercial nutrients applied have to convert to a form the plant can use. Depending on what you have to start with, and what you have to work with, what is needed to convert maybe different field to field, location to location, climate to climate.