This podcast is officially Helen Atthowe and I reviewing the DVD "Hands on Agronomy" - which is reported to be a four year soil science degree in 80 minutes. But I think Helen and I do a good job of getting 90% of the way there in 77 minutes. We talk about NPK, the Albrecht Method, pH, calcium and a list of soil nutrients. We discuss different ways of describing soil and the difference between soil and dirt. We talk about soil biology. Quick summary: the DVD is excellent. https://www.permies.com/t/19840 I think this is one of my all time best podcasts. I hope that you all will share this far and wide.