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Northern Illinois Agriculture

University of Illinois Extension
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University of Illinois Agronomy Day

Perfect weather for Agronomy Day at the South Farms on the University of Illinois campus. The very same weather that proved comfortable for those in attendance was also addressed as a concern for the 2013 crop. Dr. Emerson Nafziger  shared that the nighttime temperatures under 50 degrees would not  be a detriment to the corn crop final yield, provided the crop is allowed to reach maturity. The soybean crop does not "weather" the cool nights as successfully. One reason shared by Dr. Nafziger is that photosynthetic produced sugars by the soybean not utilized during the day are converted to starch. Normally the starches are converted back to sugars and assimilated at night. This process is slowed or stopped at temperatures  below 50 degrees.

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