Southeast Research and Demonstration Farm
Soil moisture levels were adequate going into the growing season, but March precipitation was below average. Consequently, small grains were planted early and anhydrous ammonia applications were made in a timely manner. Corn and soybean planting began during the second half of April, with most of the corn planted by May 4 and most of the soybeans by May 23.
Iowa State University
Van Dee, Kevin, "2000 Crop Season" (2001). Iowa State Research Farm Progress Reports. 1826.