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 requires a soil temperature of 50Â° F and soybean a soil temperature of 54Â° F, respectively, to germinate and grow. Temperatures below the optimum can cause seeds to remain dormant and become more vulnerable to diseases, insects, and animal predators.orn requires a soil temperature of 50Â° F and soybean a soil temperature of 54Â° F, respectively, to germinate and grow. Temperatures below the optimum can cause seeds to remain dormant and become more vulnerable to diseases, insects, and animal predators.