Cover crop interseeding has become of interest to many of us working on cover crop adoption. Interseeding cover crops in WI has been researched using a modified no-till drill. Interseeding been successful using red clover. Winter rye has also been used with limited success. As crops are being planted across the state there are many things to consider if you want to try interseeding in 2017.
As a producer; I am trying to plant corn/soybeans right now and really don’t have time to worry about interseeding into to corn right now. Are there any real dangers of really not worrying about the interseeding till my crops get planted. My schedule should be freed up by Middle May. . ..
The spring time planting rush and often interseeding a cover crop isn’t considered until it is time to do so. However, selecting herbicides that will allow interseeding is very important. At the time of interseeding the field should be weed free. After the interseeding has be done there will be very limited herbicide choices and it is too late to row cultivate.
Herbicide resistance and particularly the management of waterhemp is becoming a challenge. Residual herbicides are very important in the fight against herbicide resistance, but can make interseeding more difficult. Herbicides controlling weeds for an extended time can also control interseeded cover crops if not planned for. Selecting cover crop species and identifying troublesome weeds on your farm will help make herbicide selection easier. More information on herbicides and cover crop interseeding can be found here: http://extension.psu.edu/plants/crops/soil-management/cover-crops/interseeder-applicator/improving-the-success-of-interseeding-cover-crops-in-corn
More info on the WI research: https://www.youtube.com/watch?v=ipw2lsyYZ0E