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Southeast WI | As I look back at my notes I see those sprayer pics were taken on Nov 14, 2011. Since the soils are so shallow I really don't want anything growing in front of a corn crop. I'm always worried about losing soil moisture in the top 3-4" of soil and then germination is delayed. And in southern WI the middle of November is about the end of the growing season for cool season crops, so all I was really doing was killing out the volunteer w. wheat. The oats and radishes looked great, but in a normal year they would be froze out in the next week or two. Last year they would have been green in January...
I was planning on spraying this years radish/oats/crimson clover out over the past weekend but we had high winds on Saturday and then wind and rain Sunday so that didn't happen. And today it is 15 degrees F out, really damaging the radish and this will kill the oats of completely. It is going to warm up into the upper 40's and about 50 into the weekend so I will get them sprayed yet.
Using a normal N rate and a much higher rate at side-dress time didn't show any difference this year, but with low yields it's hard to draw conclusions. | |
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Cover Crop Pics - Follow up to Trial Results
