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| Hi guys,
for the past couple seasons we have planted an experiment consisting of full season summer cover crop mixes followed by corn the next year.
no crop is harvested year 1 (regenerative year) and then the goal is to grow high yield low-input corn in year 2.
We have been growing some good corn in year 2 (> 200 bu/a) but the cover crop mixes have not been supplying the corn with as much N as hoped.
last fall (2024) we planted winter peas into the summer cover crop mixes in an attempt to boost N availability to corn this season (2025).
here is a link to some pics: https://photos.app.goo.gl/GYJ2pLkir9zz52jA7
The peas (Survivor and WyoWinter) established well but both varieties had poor winter survival :(
On June 17, we drilled this year's summer cover crop plots with a goal of comparing low C:N ratio vs high C:N ratio cover crop biomass treatments.
Sunn hemp and cowpeas are the dominant species in the low C:N ratio plots. The high C:N ratio plots have the same CC mix + 2 lbs/a late maturity sorghum (Egyptian wheat)
Over the past several days, we have roll-crimped and drilled all the summer CC plots to 2 different mixes of winter CCs.
here is a link to some pics (and 1 video) of roll-crimping and drilling: https://photos.app.goo.gl/oHgSZfDwKmR9kPAh9
We are planning to plant most of these plots to corn in 2026 but will be planting a few plots to soybeans.
Most of the corn will be conventional till but we are planning to plant a few no-till corn plots.
Let me know if you have any questions or comments.
Joel
WIU Agriculture
BTW We have been very dry since early August but received 0.6" yesterday. A little rain fell while I was drilling hairy vetch and oats but most came soon after I pulled out of the field :)
Edited by jbgruver 9/21/2025 22:35
 (RollCrimpingandDrilling (full).jpg)
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 RollCrimpingandDrilling (full).jpg (198KB - 11 downloads)
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