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Initial Summary of Small Grains Trial – handout Download PDF (622 kB) View Fullscreen

September 1, 2014 

RESEARCH REPORT

Cover Crops Double Duty Cover and Small Grains Project timeline: October 2010 – July 2011 Published: March 3, 2012 Download PDF (891 kB) View Fullscreen

March 3, 2012 

RESEARCH REPORT

Organic hogs typically grow slower
and are less efficient than conventional
hogs. High-fiber diets high in small
grains are common in organic production
but may be less efficient compared
to corn-soybean diets.
• Tom Frantzen and family fed groups of
similar hogs either an organic cornbased
diet or a small grain diet where
succotash replaced corn.
• Small grain-fed hogs grew less quickly
and efficiently, but carcass price per lb
was similar between diet groups, and
feed price per lb was less for the small
grain diet.
KEY FINDINGS
• Feed consumption and cost was
greater for small grain-fed hogs, while
weight gain was lower.
• Small grain-fed hog carcasses were
slightly smaller but of comparable
quality to corn-fed hog carcasses.
• Hog feed is a viable use for small
grains produced in organic crop rotations,
as it is low-cost and produces
comparable finished carcasses to cornfed
hogs.

December 8, 2014 

RESEARCH REPORT

Extending and diversifying a crop rotation
to include a small grain presents
farmers with the opportunity to also
include green manure cover crops.
• Three farmer-cooperators grew a small
grain + red clover and a small grain +
cover crop mix preceding corn in their
crop rotations.
KEY FINDINGS
• Red clover frost-seeded with the small
grain put on more aboveground biomass
and contained more N than the
cover crop mix seeded after small grain
harvest on one farm.
• Corn yields following red clover were
greater than those following the cover
crop mix at only one farm.
• If sufficiently terminated, red clover and
the cover crop mix preceding corn in
rotation can result in yields comparable
to county yield averages.

December 5, 2014 

RESEARCH REPORT

Season Extension Small Potatoes FarmPublished: February 3, 2010 Download PDF (269 kB) View Fullscreen

February 3, 2010 

RESEARCH REPORT

In a Nutshell
• Extending and diversifying a crop
rotation to include a small grain
presents farmers with the opportunity
to generate biological soil nitrogen
using forage legume (green manure)
cover crops seeded in the spring and
summer.
• Farmer-cooperator, Dick Sloan grew
corn following red clover that was
frost-seeded into a cereal rye seed crop
and also after a mix of forage legumes
and other species established midsummer
after the cereal rye seed crop
was harvested.
Key Findings
• In his second iteration of investigating
these cropping systems, Dick improved
his corn yields from the first time he
tried this system in 2014.
• In 2015, corn that followed red clover
out-yielded corn that followed the mix.
• Net returns were approximately $95
greater per acre when corn followed
red clover compared to the mix.

December 2, 2015 

RESEARCH REPORT

Various green manure cover crop
mixes can successfully be established
following the harvest of a small grain
crop in mid-summer.
• Following cereal rye seed harvest
in July 2015, farmer-cooperator Tim
Sieren seeded a brassica mix into one
field and a legume mix into another
field. He then compared 2016 corn
yields resulting from a Low and High N
fertilizer rate that followed the green
manure mixes in the separate fields.
Key Findings
• Regardless of the green manure mix it
followed, corn yields were significantly
greater with the 145 lb N/ac (High) rate
compared to the 95 lb N/ac (Low) rate.
• Wet summer months likely contributed
to the superiority of the High N rate
in terms of both yield and financial
returns in 2016.

November 18, 2016 

RESEARCH REPORT

Seeding rates of small grains, like
triticale, are important to achieve
optimal plant stands, yields and yield
quality.
• Paul Mugge compared two seeding
rates of winter triticale.
Key Findings
• The two seeding rates resulted in
equivalent final plant populations and
yields.

October 20, 2016 

RESEARCH REPORT

• Two farmers tested Spray strips and
No-Spray control strips of cereal rye for
fungicide residue.
• This project was a secondary project
within “Fungicide and Plant Growth
Regulator Effect on Cereal Rye
Production” (Gailans et al., 2016).
Key Findings
• At Sieren’s farm, no propiconazole
residue was found above the
detectable limit of 0.05 ppm in No-
Spray control strips.
• At Sloan’s farm, metconazole residues
of 0.02 ppm were found in both control
strip samples, compared to the 1.30
ppm baseline residue level in the
sprayed sample.

 

RESEARCH REPORT

In a Nutshell
• Fungal diseases and lodging can
present challenges to raising small
grain crops, like cereal rye, in Iowa.
• Farmer-cooperators investigated the
use of fungicides and plant growth
regulators on cereal rye seed crops
to determine effects on yield and
germination rate.
Key Findings
• Across four fields at three farms, in only
one instance, when a fungicide was
paired with a growth regulator, were
cereal rye seed yields and financial
returns improved.
• Germination percentage of harvested
seed was generally greater than 90%
regardless of treatment.

September 30, 2016 

RESEARCH REPORT