Person: Jeremy Gustafson

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On-farm research shows benefits of planting “green” with soybeans into a cereal rye cover cropFor Release: March 29, 2017 Download PDF (3 MB) Contact: Nick Ohde | Research and Media Coordinator | Practical Farmers of Iowa | (515) 232-5661 | [email protected] Stefan Gailans | Research and Field Crops Director | Practical Farmers | (515) 232-5661 [...]

March 29, 2017 

NEWS RELEASE

Delaying cover crop termination until near soybean planting would allow for more biomass production by the cover crop in the spring presenting the opportunity for more environmental benefit. Two farmer-cooperators continued work they began in 2015 that compares terminating a cereal rye cover crop 2-3 weeks prior to seeding soybeans (early termination) with terminating the […]

November 30, 2016 

BLOG POST

In a Nutshell
• Delaying cover crop termination until
near soybean planting would allow
for more biomass production by the
cover crop in the spring presenting the
opportunity for more environmental
benefit.
• Two farmer-cooperators continued
work they began in 2015 that compares
terminating a cereal rye cover crop 2-3
weeks prior to seeding soybeans (early
termination) with terminating the cover
crop within 5 days of seeding soybeans
(late termination).
Key findings
• Jeremy Gustafson saw a 2 bu/ac increase
and improved weed control with
the late termination treatment in 2016.
This amounted to a $49.97/ac economic
benefit compared to the early termination
treatment. In 2015, soybean
yields were equivalent between the two
termination date treatments.
• Jack Boyer saw no difference in soybean
yields between the two cover
crop termination treatments in either
year. In 2015, he was able to skip a
post-emergence herbicide application
which saved him approx. $40/ac.

 

RESEARCH REPORT

The Farm Progress Show was in Boone, IA last week. Practical Farmers of Iowa has been hosting a booth at the show the past three times its been held in Boone, IA. The booth was filled with cover crop plants, PFI materials and most importantly PFI farmer experts who shared advice about cover crops with other […]

September 9, 2016 

BLOG POST

Practical Farmers of Iowa’s mission is to strengthen farms and communities through farmer-led investigation and information sharing. One of the primary ways we accomplish this mission is through on-farm research as part of our Cooperators’ Program. Over the past few years, the investigation of cover crops by farmer-cooperators has dominated the program. Below I offer a review […]

July 19, 2016 

BLOG POST

Cover Crop Variety Trial 2015-2016 Download PDF (2 MB) View Fullscreen

July 7, 2016 

RESEARCH REPORT

Each year more farmers in Iowa and across the Cornbelt are trying cover crops. Many start with a cereal rye cover crop planted in the fall after corn or soybean harvest or others contract with a pilot to fly it over the standing cash crop around Labor Day. Good planter setup can be key to […]

May 17, 2016 

BLOG POST

Delaying cover crop termination until soybean planting would allow for more biomass production by the cover crop in the spring presenting the opportunity for more environmental benefit. A newly released research report profiles the findings of farmer-cooperators who seeded soybeans 10-14 days after terminating a cereal rye cover crop and within 1 day of terminating the cover crop. The objective of this […]

November 30, 2015 

BLOG POST

In a Nutshell
• Delaying cover crop termination until
soybean planting would allow for more
biomass production by the cover crop
in the spring presenting the opportunity
for more environmental benefit.
• Farmer-cooperators seeded soybeans
10-14 days after terminating a cereal
rye cover crop and within 1 day of
terminating the cover crop.
Key findings
• Jeremy Gustafson and Jack Boyer saw
no difference in soybean yields with the
two cover crop termination dates while
Bob Lynch saw a small reduction with
the late termination date.
• Bob and Jack observed cereal rye residue
in the late termination treatment
to persist through the soybean growing
season holding soil in place and reducing
weed pressure.

November 23, 2015 

RESEARCH REPORT

Cereal rye, oats and other cool-season,
small grains grass species have been
proven as effective cover crops in Iowa
crop production systems.
• Cooperators screened pure seedings
and mixtures of grass, legume and
brassica cover crops for ground cover
and aboveground biomass production
in small, hand-seeded plots across the
state.
KEY FINDINGS
• Cereal rye and mustard tended to produce
the most amount of fall ground
cover.
• Cereal rye and field pennycress were
the only entries to consistently overwinter
and produce spring growth.
• Field pennycress may be a good option
for those in corn-soybean systems
looking to add diversity to their practice
of cover cropping.

July 16, 2015 

RESEARCH REPORT