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user picture Paul Carter

How much water is corn using per day now?

  • 4 votes

Lots of concern about the dry, hot weather. Nice visual here from folks at the University of Nebraska-Lincoln showing that largest corn water use demand is just before and after tassel and silking into the grain filling period.

Click on the graphic for a larger view.

 

  • Corn
  • Crop Management

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Trans evaporation rates Vary greatly depending on temperature and humidity in any given day. Night time as well as daytime.

That is a good chart, but it is averages.

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Billie:

Yes, these are average numbers for both evapotranspiration rates and yield losses per day of stress. With high temperatures today forecast near 100*F in some areas water use rates will be higher.  I found this chart which shows a range around the average for cool and humid and hot and dry days.

 

 

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Thanks! Trans evaporation rates can vary from as little as few 100ths a day to a half inch a day. Water sensing technology companies report this based upon the weather for that day.

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Billie: Sounds like you have confidence in commercial water sensing technology. This seems important for irrigation scheduling, both to supply the crop and conserve water.

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