We had a great evening for a cover crop field day hosted by the Gaesser family near Corning on Tuesday, July 9th. With nearly 50 people in attendance, there was great interest in adding more cover crop acres among the experienced users and a handful of those looking to try it for the first time.
Sarah Carlson, Practical Farmers of Iowa, helped set the stage by sharing how farmers can help make cover crops pay with benefits beyond improved water quality and soil erosion reduction.
“If we want to get started and make it pay, it is best to start with a small grain like rye or oats,” commented Carlson. “In a corn/soybean rotation, legumes and brassicas are not going to get enough sunlight to justify the seed cost.”
For the more experienced cover crop users, Carlson recommended taking them to the next level by delaying spring termination of rye ahead of soybeans to achieve weed control benefits and reducing herbicide costs. Another suggestion was planting corn in 60 inch rows to interseed the cover crop earlier in the season to achieve more growth.
The Gaesser family has been growing their own rye seed for cover crops for the past few years as a way to control costs and improve soil and water quality on their farm.
“We grow our own cereal rye seed each year averaging between 3,000-7,000 bushels to help us cover about half of our crop acres. We like to include rye in the rotation on fields that have been a challenge before – weed pressure or erosion. Once harvested, we clean and store it for use that same year,” stated Chris Gaesser.
Having your own seed supply is a major advantage this year due to the widespread need for prevented planting seed across the Midwest.
“The cover crop seed surplus from 2018 has been used up already this year,” shared Bert Strayer of La Crosse Seed. “That means this year’s cover crop seed will come from what gets harvested in the next month or so. For that reason it is encouraged to get your seed orders in as soon as you can to make sure you have access to seed when you want to be seeding this fall.”
If you are looking for a seed source near you, check out the Practical Farmers of Iowa Cover Crop Business Directory.
Be sure to stay tuned to our events page for more cover crop field days later this year!