When soil biology has an oxidizing effect, the supply of bioavailable manganese, iron, copper, cobalt, and other minerals is greatly decreased. In this webinar, John describes why excessively oxidized soils lead to tied up manganese and other metals. He will describe how to change cultural management practices to shift soils to a more reduced state and release mineral metals that are unavailable to plants when the soil is oxidized. Links to resources mentioned in this webinar: AEA Rebound Products: https://www.advancingecoag.com/store/Nutritional-c20204194 John Kempf's new book Quality Agriculture: https://www.qualityagriculture.com Understanding Redox Potential Free Course: https://www.academy.regen.ag/redox-potential/ Complete video: https://youtu.be/Gs9XVPHyWWg

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