The University of Georgia
GAES Research Report Number 657
November 1998

1998 Corn Performance Tests


Edited by
Anton E. Coy, J. LaDon Day, and Paul L. Raymer


The Season

The 1998 corn season was difficult.  Record cold March temperatures and wet field conditions in early April contributed to a 10% decline in planted acres to 500,000.  Planting progressed 1 to 2 weeks behind average.  Beginning in mid-May, dry conditions and hot weather during pollinating and grain filling caused more than half of Georgia's corn crop to be in poor to very poor condition by mid-July.  Stress conditions resulted in increased insect pressure and high incidences of smuts and stalk rots.

Seasonal rainfall amounts for the six testing sites are listed in the table below.  Although seasonal rainfall totals are above normal in four of the six stations, the distribution was not always timely for the corn crop.

Growing Season Rainfall1, 1998

Month Blairsville Calhoun2 Griffin Midville Plains Tifton

        ------------------------------------inches----------------------------------
February 6.24 7.26 7.49 6.78 6.88 4.54
March 5.27 5.54 4.95 7.04 7.32 8.06
April 8.21 8.91 7.59 6.83 9.16 3.52
May 1.90 2.85 2.30 2.90 4.31 2.44
June 5.99 2.51 2.57 1.89 1.69 1.20
July 2.76 2.90 3.39 1.84 3.50 4.75
August 3.27 2.45 4.94 4.22 2.03 2.04
September 2.72 0.97 2.92 5.70 10.84 9.32
 
Total (8 mo) 36.36 33.39 36.15 37.20 45.73 35.87
 
Normal (8 mo) 38.53 37.14 35.88 34.70 34.71 35.28

1.  Data submitted by Dr. G. Hoogenboom, Georgia Station, Griffin, GA.
2.  Floyd County location.

    Corn harvest was hampered by showers but in general proceeded about a week ahead of normal. After salvage for silage and abandonment, only 400,000 acres were harvested for grain at a yield estimated to be only 80 bushels per acre compared to the record yield of 110 bushels per acre from 500,000 acres in 1997.