Tagged: Cereal Rye Termination
May 5, 2017 at 10:56 am #961
One of my valuable life lessons I learned was working concrete as a seasonal laborer. The company owner had a good line. . . “When the mud is on the truck. . . It needs to get off now. You make plan A and plan B but most of the time you are into plan C and D to complete the pour”
As with Concrete, sometimes timing of Cereal rye termination can have some hitches. . . . . Do any of you have some experiences or guidelines you would share to the group on terminating cereal rye? Has anybody planted directly (green) into cereal rye?
May 5, 2017 at 3:05 pm #964
Cereal rye (winter rye) termination can be difficult and should be planned for prior to cover crop seeding. Cereal rye can be terminated by using glyphosate. WI research has shown that a burndown rate of glyphosate, when properly timed, terminates winter rye easily. A properly timed application is defined as when the cereal rye is actively growing, day time temperatures above 50 degrees F and night time temperatures above 40 degrees F for three days prior to and following herbicide application. More info on the research can be found here: http://ipcm.wisc.edu/download/pubsPM/AnnualRye_WinterRye_Glyphosate.pdf
Termination of cereal rye under less than ideal conditions may result in a failed attempt.
Special considerations should be taken if the cereal rye will be harvested for forage. If glyphosate will be used to terminate the cereal rye application should take place following harvest. A glyphosate application prior to forage harvest is illegal due to herbicide label restrictions.
May 11, 2017 at 11:34 am #971
Questions from the fieldParticipant
My rye got away and is a foot tall. Do you have any recommendations for terminating rye with the use of tillage? 8,000 gallons of manure/acre has been applied to this field and will get plowed in. Will the rye affect my corn yield?
May 12, 2017 at 11:48 am #973
Here are some opinions. . .. . I encourage others to weigh in. . . .
This gets interesting as there are a lot of different factors that come into play (C:N, allelopathy??, historic tillage rotation vs historic no-till rotations, Nitrogen timing and placement, and soil type).
We are assuming you are a dairy producer in a tillage system and going back to corn silage and have very good fertility. (I would look at a couple of other different considerations in a No-Till system).
I wouldn’t be too worried about it if you can get it at 12 inches in this system. As for the yield drag. . . there are a couple of different camps out there Allelopathy or Nitrogen deficiency? There are arguments for each. My personal belief is watch your Nitrogen in this case and life should be good. The carbon nitrogen ratio on vegetative rye is around 26.1 and your soil wants to be around 25:1. . . . so not a huge tie up here. If the rye boots the carbon nitrogen moves to 37:1 and we see greater tie ups (but we won’t be here). At 8,000 gallons you should be getting around ~50 units of N but this isn’t super available right away and will be pulling on your readily available N up front. I am assuming you are adding some commercial N to make up your nutrient balance. . . . Ideally having some of this commercial N closer to the plant (28% or starter) is some insurance. If you don’t run starter at all. …. .I would be little more worried.
If you feel your tillage program isn’t “up to” the rye. .. . an option is let it go for a few days and take some ryelage off and then come back with manure/tillage and plant. This is a system that has been adapted in Wisconsin as long as we don’t get too dry. . . I believe Matt Ruark, UW Wisconsin did some research on this system a couple of years ago also.
- This reply was modified 2 years, 3 months ago by Brian Briski. Reason: tweaks
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