7. U.S. Nitrous Oxide Emissions
Agriculture is the main source of
nitrous oxide in the U.S., due in large
part to nitrogen-based fertilizers, but
residue breakdown also contributes
Image created by EPA
9.
This is what separates us
(Missouri) from Central Iowa,
Illinois, Minnesota, Indiana,
etc
In these areas climatic
conditions favor the
accumulation of Organic
Matter
Slower breakdown, long
history of deep rooted
native perennial plants
10.
Nutrient Cycling
Water Dynamics
Nutrient Holding
Capacity
Pool of Nutrients
Food for soil organisms
Improves water
infiltration
Improves water holding
capacity
Structure
Reduces
crusting, compaction, eros
ion
Encourages root
development
22.
A lot of biomass-2-3
tons/acre
Winter Hardy
High Nitrogen Fixation100 plus lbs/acre
Wide window of
planting
August-mid October
March
Hard Seed, late
maturing
Problem When Wheat
is in the Rotation
30.
Very Short Growing
season-60 days
Some Weed ControlAllelopathy
Inexpensive Seed-much
like wheat or rye
Attract Beneficial
Insects
Many uses for
Vegetable production
Nutrient Cycling
31.
Inexpensive Seed
Rye is very winter
hardy
Rye tremendous dry
matter
Suppress weeds
Allelopathy or
Blocking Light
Good to mix with
legumes
33.
Cross between wheat
and cereal rye
Hardiness of cereal
rye
Good forage potential
Does not have the
allelopathic potential
as cereal rye
34.
Plant in Fall
Overwinter-most of
the time
Deep Roots-5-6 ft
Scavenge Nitrogen
Dense matt controls
weeds
Can become a weed!
Herbicide resistance
problem
83. Ohio State
University
Courtesy of
Steve Groff
Open
field
Tillage
Radish®
field
Soil compaction
decreased by >40%
Loosen SoilIncrease root
growth and
water
infiltration?