Any one have experience with soil nitrogen levels in corn tha

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David Kruger

Jul 28 | 10:20 PM

Any one have experience with soil nitrogen levels in corn that fails from drought. We applied nitrogen for 180 bushel corn about 125 units of N. If we stay on the drier side so we don’t loose nitrogen to leaching I am expecting to see good residual nitrogen in the soil (I maybe wrong). If we do see soil nitrogen this fall considering planting winter wheat or rye to try and use this nitrogen. Anyone ever tried this? I know it is risky with the possibility of scab but seems like there is a potential to use the nitrogen instead of planting beans and just wasting the residual nitrogen. Any thoughts??? Picture isn’t to serious but doesn’t look as good anymore since the 100 degree heat the last few days, a lot more brown on leaves now.

SDSU Extension

Anthony Bly

Jul 29 | 05:41 PM

Whenever I consider disease, I think about the triangle. pathogen, host environment. All 3 are needed to have disease issues. Cant predict the future, but if corn is a total fail, winter wheat could have fusarium issues next year if its too wet. Would oats work fo you? Just trying to give more thoughts. If enough left over N, might not have to apply any for the oats.

Brad Farrell

Jul 29 | 12:32 PM

In my experience, you’ll likely have a lot of residual N. Soil tests (especially zone soil tests based on soil texture/EC/topography) can help you narrow it down further.