The next two experiments illustrate data from both Illinois and Iowa. The fertility methods used were different at each location. The Illinois plots received a corn maintenance application of P/K fertilizer whereas the Iowa location received a standard recommendation for a corn/soybean rotation. Nitrogen rates were adjusted to provide 150 pounds of total nitrogen on all plots. Irrigation was applied in August and September at the Martinsville location.
 

Treatments (Cedar Falls) 1 Untreated Control 2 Pellet Lime 300 lbs, DAP 200 lbs, Potash 200 lbs 3 DAP 200 lbs, Potash 200 lbs

Treatments (Martinsville) 1 Pellet Lime 250 lbs, MAP 125 lbs, Potash 100 lbs 2 MAP 125 lbs, Potash 100 lbs 3 Pellet Lime 250 lbs 4 Untreated Control

Comments:
Based on local University standards soil fertility levels are considered "high" at each of these locations. Soil water pH levels are not considered to be a yield limiting factor. These two studies provide information that show corn is responsive to broadcast applications of Pellet Lime.