In cooperation with Stuart Brabant, Area Extension Agent in Henderson county , four field trials with nitrogen fertilization on corn were conducted in the Ohio River Bottom area. In two of the trials where corn was followed by corn, nitrogen was applied at the rates of 0, 50, 100, 150 and 200 pounds per acre, with each treatment replicated 4 times. In the two other trials, where corn was grown following soybeans, nitrogen rates of 0, 100 and 200 pounds per acre were replicated 4 times in one field and 3 times in the other.
Planting was delayed until early June in three of the tests, owing to a spring overflow. One area located on slightly higher ground was planted prior to the overflow and was not flooded. The nitrogen, applied in the form of ammonium nitrate, was applied broadcast on the proper plots June 30, 1967.
Miller, Harold F., "Results of Nitrogen Applications on Ohio River Overflow Bottom Areas in Henderson County in 1967" (1968). Agronomy Notes. 192.