Person: Jack Boyer

25 posts

Refine search

Cover crops are gaining new attention for their ability to reduce weed pressure in soybeans. Specifically, when seeding soybeans directly into a thick cover crop. In the past two years, farmer-researchers Jeremy Gustafson and Jack Boyer have documented reduced herbicide use when planting soybeans into a tall, thick cereal rye cover crop that they chemically terminated […]

November 15, 2017 

BLOG POST

• Cover crops are gaining new attention
for their ability to reduce weed
pressure in soybeans. Specifically,
when seeding soybeans directly into a
thick cover crop.
• Farmer-cooperators Jack Boyer and
Scott Shriver investigated the effect
of row-width on soybean yields when
rolling a cereal rye cover crop. Boyer
rolled select strips after terminating
with an herbicide; Shriver used a
roller-crimper to terminate his cover
crop.
Key Findings
• The narrowest soybean row-width at
both farms (10-in. at Boyer’s; 7.5-in. at
Shriver’s) resulted in greatest yields.
• Boyer saw the greatest return on
investment where he drilled soybeans
in 10-in. rows and did not roll the
cover crop after chemical termination.
The drill itself appeared to lay down
much of the cover crop residue.

 

RESEARCH REPORT

If cover crops can successfully be established when interseeded into corn in June, this may permit farmers to use existing equipment (rather than high-clearance machines or airplanes); may permit the use of more diverse cover crop species; and ultimately may increase the amount of cover crop biomass produced. Last year, PFI farmer-cooperator Jack Boyer interseeded a […]

June 13, 2017 

BLOG POST

If cover crops can successfully be
established when interseeded into
corn in June, this may permit farmers
to use existing equipment (rather than
high-clearance machines or airplanes);
may permit the use of more diverse
cover crop species; and ultimately
may increase the amount cover crop
biomass produced.
• Jack Boyer interseeded a 4-species and
6-species cover crop mix into seed corn
at the V4-V6 stage in randomized and
replicated strips.
Key Findings
• Both the 4-species and 6-species mixes
survived below the seed corn canopy
and produced similar amounts of
aboveground biomass by mid-October.
• The interseeded cover crop mixes had
no adverse effect on seed corn yield.
Project Timeline
2016

June 12, 2017 

RESEARCH REPORT

On March 29, Jack Boyer hosted a field day to share his experiences and successes with using cover crops on his family’s farm near Reinbeck. Jack and his wife, Marion, are lifetime members of Practical Farmers. They raise corn, seed corn, soybeans and cereal rye for cover crop seed. They have been integrating cover crops into the […]

April 13, 2017 

BLOG POST

Field day will explore cover crops in corn and soybeans – March 29, near ReinbeckFor Release: March 15, 2017 Download PDF (80 kB) Jack and Marion Boyer Contacts: Jack Boyer | J Boyer Farms, Inc. | (319) 345-2265 | [email protected] Stefan Gailans | Research & Field Crops Director | Practical Farmers of Iowa | (515) [...]

March 15, 2017 

NEWS RELEASE

In 2016, 76 farmer-researchers conducted 109 trials on farms across the state spanning the field crops, livestock, and horticulture program areas. On Dec. 8-9, 2016, 70 farmers gathered in Ames at the Cooperators’ Meeting to discuss completed on-farm research projects and design new experiments. The Cooperators’ Program is the epitome of what PFI is all about: […]

December 20, 2016 

BLOG POST

Getting More from Cover CropsDecember 15, 2016 View Farminar Pre-recorded Farmer Jack Boyer will share the results of on-farm research trials he has been conducting in an effort to “get more” from his cover crops, including his trial delaying cover crop termination until the day of soybean planting. Iowa State University agronomy researcher Michael Castellano [...]

December 15, 2016 

FARMINAR

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