Updated January 2015. The increased cost of health insurance is a central fact in any discussion of health policy and health delivery. As annual premiums edged beyond $16,800 for an average family, costs are blamed for rising uninsured and under-insurance..
Figure 1. Corn growth and temperature levels. Corn will germinate and grow slowly at about 50 F (10 C), but the average first spring planting dates across the U.S. usually begin when the average air temperatures reach 55 F (13 C) and soil temperature at seed depth is favorable for seedling growth.
It may take several days of air temperatures in the 60 to 90 F range to warm soil to 60 F in the spring. If your corn is slow to germinate, you may have planted it before the soil was warm enough. At a soil temperature of 55 F, corn may take up to 22 days to germinate. Moisture In order to sprout quickly, corn seed needs adequate moisture in the soil, which kicks off the germination process.