Person: Myron Rees

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In a Nutshell
• Cereal rye, oats and other
small grains grass species
have been proven as effective
cover crops in cornsoybean
systems in Iowa.
• Cooperators screened grass,
legume and brassica species
for fall and spring groundcover
in hand-seeded plots
(7.5’ x 25’) across the state.
Key findings
• Cereal rye remains the
most consistent cover crop
providing fall groundcover,
overwintering capability and
spring groundcover across
• Brassicas generally produced
as much fall ground cover
as the small grains grasses
in the present iteration of
the trial.
• Hairy vetch and radish
performed better than in
past iterations, likely due to
exceptional growing conditions

July 25, 2017 


Cover crop entries were hand seeded at
locations into standing corn and soybeans
and evaluated for fall ground cover,
spring ground cover, and spring biomass
• Cereal rye and mustard tended to
produce the most amount of fall ground
• Sufficient rainfall following cover crop
seeding is necessary for fall cover crop
growth and overwintering potential.
• Cereal rye was the only entry to
successfully overwinter and produce
spring growth and remains a strong
cover crop candidate even in the face of
a challenging winter.

August 19, 2014 


Cover Crop Variety Trial 2012-2013 Project timeline: August 2012 – May 2013 Published: August 1, 2013 Download PDF (1 MB) View Fullscreen

August 1, 2013