Why trace minerals & micronutrients are vital to crop health, disease resistance | Regenerative Ag
56:28
Controlling mite infestations with nutritional inputs & regenerative practices | Regenerative Ag
1:01:24
What regenerative farmers need to understand about micronutrient deficiencies | John Kempf, AEA
48:50
The Role of Micronutrients in Crop Health and Disease Resistance
1:06:25
Farmers need to release manganese and other metals from soil reserves. Here's how. | Regenerative Ag
1:27:27
John Kempf -- Simple & Comprehensive Fertility Management for Market Gardens
23:43
The Role of Calcium in Plants with Dr. John Halvin
1:55:45
How Excess Nitrogen Creates Yield Drag | John Kempf and Advancing Eco Agriculture
1:21:00