You can hasten the maturity of your corn in many years by the use of better soil fertility practices- such as improved crop rotations, manure and fertilizers. This hastened maturity is especially important when a cold, wet season delays planting or slows down early growth, or when there's an early freeze before the corn is mautre.
Dumenil, Lloyd and Shaw, R. H.
"You Can "Hasten" Corn Maturity!,"
Iowa Farm Science: Vol. 6
, Article 8.
Available at: https://lib.dr.iastate.edu/farmscience/vol6/iss10/8