12. Why Are We Looking
At Cover Crops?
Many Reasons-one is Soil
Organic Matter
13. Importance of Soil Organic
Matter (SOM)
13
Kristen Veum and Robert Kremer
14. What is Soil Organic Matter?
SOM is derived from
– Plant residue (both
litter and roots)
– Animal remains and
excreta
– Living soil microbes
(microbial biomass)
Over time fresh
organic material is
transformed into soil
organic matter
Crop
Residues
Bacteria
Fungi
Actinobacteria
SOM
14
15. Soil Life (macro)
Help create soil
structure and break
down larger plant
residues
• Earthworms
• Nematodes
• Beetles
• Ants
• Termites
• Springtails
16. One tablespoon of soil has approximately 1 billion
soil microbes:
• Bacteria: 3,000,000 to 500,000,000
• Actinobacteria: 1,000,000 to 20,000,000
• Fungi: 5,000 to 1,000,000
• Yeast: 1,000 to 1,000,000
• Protozoa: 1,000 to 500,000
• Algae: 1,000 to 500,000
• Nematodes: 10 to 5,000
Soil Life (micro)
17. This is the mass equivalent
of two cows per acre that
need to be fed
Soil organisms
are much like
cows, they need
inputs of plant
residues for food
and energy
Specifically, they
need the carbon
that is contained
in plant residue
and soil organic
matter
18. Cover Crops in Winter-Something
Green and Growing Year Around
And Feeds The Soil Biology
19. What Destroys Organic Matter? Tilling!
Whether It Is a Plow or a Field Cultivator
Loss of Organic
Matter
– Soil structure
– Soil microbial
biomass
Release of CO2
Soil Erosion
Why Till?
– Weed Control
20. Tilled VS No-Till-We Have Destroyed Much
of Our Soil Structure
Long Term Pasture
Tilled in a
Corn/Soybean/Wheat Rotation
34. Field Days, Clinics and Workshops
Hail School
Native Plant Field Day
Weed/IPM Field Day
Crop Injury and Diagnostic
Clinic
Integrating Bob White
Quail in Agriculture
Tomato Festival
FFA Field Day
Numerous Septic Systems
Installation and
Inspections
35. 10 Years Ago Only
Targeting the Grain
Farmer
How Do We Reach Out to
Those Who Are Not
Traditionally Our
Audience?
36. Modern Agriculture,
Conservation and Wildlife on
the Same Page
Quail Harvested in Illinois
0
500000
1000000
1500000
2000000
2500000
3000000
1956
1960
1964
1968
1972
1976
1980
1984
1988
1992
1996
2000
2004
Year
QuailHarvested
66. Campus Dining-A Survey
Each student
through out 4.5 oz
of food each meal
250 tons/year!
400 big round
bales!
67. What If We Could Make Compost
Out Of the Food Waste?
Food Waste Horse Bedding
68. MU’s Campus Dining halls
generate 3,000+ gallons of
Waste Vegetable Oil
annually. This WVO will be
converted into biodiesel.
An estimated 40% of all food produced in the country is discarded, according to a new federal report. Each day, every person in the U.S. puts about 1,400 calories
worth of food in the garbage, according to researchers at the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Food waste has increased
50% since previous estimates were made in 1974, and now totals some 150 trillion calories per year. SOURCE: CALIFORNIA EMERGENCY FOODLINK
Zero Carbon Footprint Vegetable & Compost P roduction System
University of Missouri Bradford Research & Education Center & MU Campus Dining
Tim Reinbott, BREC Superintendent; Eric Cartwright, MU Campus Dining; Steven Kirk, MU Division of Plant Sciences
Several large-scale composting
methods exist. These include:
Windrow, Aerated Windrow, Aerated
Static Pile, In-Vessel, Containerized
In-Vessel, Rotating Drum and Bag
Systems. Variables include: cost,
compost consistency, time, labor and
area requirements.
The University of Missouri Animal
Sciences and Veterinary Medicine
produce 1500 tons of manure and
bedding material each year. MU’s
Campus Dining produces 270 tons
of food waste annually.
BREC can serve as a model for similar institutions by providing a
working example for alternative waste management. Food waste from
Campus Dining will be collected and taken to BREC, mixed with animal
manures and beddings as needed to balance any nitrogen or carbon
requirements, and composted to create the optimum soil amendment
to be used to grow produce that will then be sold back to Campus
Dining completing the circle. In addition to the compost utilized by
horticultural researchers and students to grow vegetables, excess
compost can be applied to larger fields such as sweet corn, pumpkins,
melons and other crops, as well as be used as a soil amendment by
MU’s Landscape Services and the Mizzou Botanical Garden.
There is a growing interest in locally produced food by the general
public and in our school systems. This proposed system is the
essence of Community Development, and can serve as a model of
how food waste from any type of cafeteria (school, business,
institutional) can be utilized to produce a valuable commodity. Similar
systems could be used to provide schools with a healthy source of
locally grown food, and provide vegetable producers with a creative
way to convert so called waste materials into assets to sell at local
farmers markets and to the general public. The cost/benefits realized
from not sending materials to the landfill could be substantial.
Biodiesel will power the trucks, tractors & equipment used for
vegetable production as well as pick-up and delivery of food
waist and produce to and from campus. Carbon Credits will be
used to off-set any other energy needs for this project.
75. Let’s Make It Green!
Campus Dining
Goes Through
3,000 gallons of
Waste Vegetable
Oil Each Year!
76. Make It Into Biodiesel!
$10,000 Missouri
Soybean Association
50 gallons every 48
hours
By product Glycerol
which contains methanol
Challenge to remove the
methanol, then the
Glycerin can be
– Composted
– Burned
– Animal feed
– Made into soap