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Super high energy forage
Rapidly building organic matter
The most cost effective management of plant
nutrition
John Kempf
1. Carbohydrates
2. Proteins
4. PSM’s
3. Lipids
- soil borne pathogens
- sucking and chewing insects
- air borne pathogens
- beetles
24 hour photo cycle
John Kempf
Sugar source Photosynthesizing leaves
Sugar sinks Shoot growth
Root growth
Fruit development
Root exudates
How to build soil organic matter
fast
John Kempf
The Organic Matter Paradox
John Kempf
~ 50% of crop biomass is below the
soil surface
John Kempf
~ many crops deplete soil organic
matter
John Kempf
How can both be true?
John Kempf
John Kempf
Lifetime sugar production
Root Exudate
s
Plant Biomass
Fruit
Root Biomass
John Kempf
Root Exuda
tes
Plant Bioma
ss Fruit
Root Bioma
ss
John Kempf
Root Exuda
tes
Plant Bioma
ss Fruit
Root Bioma
ss
John Kempf
Root Exuda
tes Plant
Biomass
Fruit Root Bioma
ss
John Kempf
Root Exuda
tes Plant
Biomass
Fruit Root
Biomass
John Kempf
Root Exudate
s
Plant Bioma
ss
Fruit
Root Bioma
ss
John Kempf
Root Exudate
s
Plant Biomass
Fruit
Root Biomass
With FULL photosynthesis
John Kempf
Root Exuda
tes
Plant Bioma
ss
Fruit
Root Bioma
ss
With usual photosynthesis
To build organic matter fast:
1. Peak Photosynthesis
2. Fungal digestion
John Kempf
John Kempf
Peak Photosynthesis
John Kempf
Fungal Digestion
John Kempf
Full Capacity Photosynthesis Full Capacity Photosynthesis Bacterial Digestion Bacterial Digestion
Mineralization Mineralization
Humification Humification
Microbial Metabolite Nutrition Microbial Metabolite Nutrition Fungal Digestion Fungal Digestion
1. Carbohydrates
2. Proteins
4. PSM’s
3. Lipids
- soil borne pathogens
- sucking and chewing insects
- air borne pathogens
- beetles
Maximum
photosynthesis
John Kempf
low mineral content =
Two reasons why organic
materials are not converted to
organic matter.
John Kempf
Lack of biological digestion
John Kempf
John Kempf
John Kempf
2. Biological digestion that
doesn't lead to the formation of
stable humic substances
John Kempf
John Kempf
Bacterial Digestion
John Kempf
(Mineralization)
John Kempf
Crop Fertilizer
Amount of organic material does
not correlate to the quantity of
stable humic substances
John Kempf
Fungal Digestion
John Kempf
(Humification)
John Kempf
Soil Builder
Fungal digestion in the field
John Kempf
John Kempf
John Kempf
John Kempf
John Kempf