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.
Corn is a warm-season annual that is best planted after the soil temperature reaches 60Â°F, usually two or three weeks after the last frost in spring. Corn planted in cold, wet soil is unlikely to germinate.Corn grows best in air temperatures from 60Â° to 95Â°F.Corn can take from 60 to 100 days to reach harvest depending upon variety and the amount of heat during the growing season.dd aged compost to the planting area before planting. Add aged compost to the planting area the autumn before planting. Planting time. Corn is a tender, warm-season annual that is best planted after the soil temperature reaches 60Â°F, usually 2 or 3 weeks after the last frost in spring.