The document discusses a webinar on releasing manganese and other metals from soil reserves, highlighting the impact of soil management practices on metal bioavailability. It emphasizes the necessity of shifting soils to a reduced state through various cultural practices to enhance manganese and iron availability, potentially increasing agricultural yields and disease resistance. The immediate solution proposed is the application of manganese and iron until appropriate soil levels are achieved.

1. HOW TO RELEASE MANGANESE AND
OTHER METALS FROM SOIL RESERVES
A Webinar Hosted by Advancing Eco Agriculture
Featuring John Kempf
Photo Credit: Kish Valley BioAg

2. Photo Credit: Kish Valley BioAg
Map of the Redox Worlds

3. ● Tillage
● Salt fertilizers
● Nitrates
● Lime applications
● Liquid manure
applications
● Saturated soils
● Ammonium
● Specific plant
species
● Root exudates
from plants with
functional immune
systems
Oxidizing Reducing

4. ● Aerobic
● Nitrification
● Disease-enhancing
Oxidized
● Anaerobic
● Denitrification
● Disease-suppressive
Reduced

5. Manganese
is only bioavailable and
physiologically active in
plants in the reduced form.
Mn++ Mn++++
Reduced Oxidized

6. Many agricultural soils are
excessively oxidized because
of historical cultural
management practices.

7. Aerobic
Four Groups of Soil Bacteria
Anaerobic
Facultative Anaerobic
Facultative Aerobic

8. Cultural management practices to
shift soils to the reduced state:

9. Reduced tillage/aeration

10. Covered soil

11. Crop rotations

12. Reducing crops/covers

13. Keep soils moist

14. Avoid salt fertilizer, nitrate, and limestone
applications
Photo Credit: Hay & Forage Grower

15. Foliar applications

16. Immediate Solution:
Apply manganese and iron until the
soil is releasing it.

17. Shifting soil to balanced redox levels can increase
manganese and iron availability 1x - 40x.
This shift will increase yields and disease resistance
accordingly.

18. Learn more at Academy.Regen.Ag

19. Find John’s book on
qualityagriculture.com