Person: Bob Lynch

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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

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

• Neonicotinoid seed treatments in
soybean production are ubiquitous but
recent evidence has called their benefit
to yields and their ecological impact
into question.
• Farmer-cooperators compared soybean
yields from soybeans of the same variety
grown from neonicotinoid-treated
seeds and seeds not treated with a
neonicotinoid.
Key findings
• At each location, there was no measured
effect of seed treatment on
soybean yield.
• Given the lack of measured yield
benefit, the economic practicality of
neonicotinoid seed treatments can be
questioned.

November 19, 2015 

RESEARCH REPORT

Objective: Quantify the agronomic performance of soybeans planted into an early and late terminated cereal rye cover crop.

July 7, 2015 

RESEARCH PROTOCOL

Neonicotinoid seed treatments in
soybean production are ubiquitous but
recent evidence has called their benefit
to yields and their ecological impact
into question.
• Farmer-cooperators compared soybean
yields from soybeans of the same variety
grown from neonicotinoid-treated
seeds and seeds not treated with a
neonicotinoid.
KEY FINDINGS
• At each location, there was no measured
effect of seed treatment on
soybean yield.
• Furthermore, the economic practicality
of neonicotinoid seed treatments
can be questioned given the lack of
measured yield benefit.

December 6, 2014 

RESEARCH REPORT

Nutrient reduction strategies are a major focus of Practical Farmers’ annual conference – Jan. 24-25, in AmesFor Release: December 23, 2013 Download PDF (259 kB) View Fullscreen

December 23, 2013 

NEWS RELEASE

Many farmers planted cover crops on prevented planting acres this season and now have questions about managing those acres this fall and winter. Other farmers are considering planting cover crops for the first time this fall and have questions about species selection, timing, spring management and more.

September 19, 2013 

FARMINAR

Practical Farmers of Iowa webinar will answer questions on cover crops, prevented planting and spring management Sept. 19 – CCA credits available For Release: September 11, 2013 Download PDF (139 kB) View Fullscreen

September 11, 2013 

NEWS RELEASE