It usually involves walking on a treadmill or pedaling a stationary bike at increasing levels of difficulty, while your electrocardiogram, heart rate, and blood pressure are monitored. Your doctor uses the stress test to: Determine if there is adequate blood flow to your heart during increasing levels of activity.
University of Illinois February 2018 This publication presents revenues and costs for producing corn, soybeans, wheat, and double-crop soybeans in three regions of Illinois: northern, central, and southern Illinois. Central Illinois is further divided into categories for high-productivity farmland and low-productivity farmland. Divisions between high and low farmland productivity are made based on soil productivity ratings. Generally, farms with higher soil productivity ratings have higher yields. Between 2011 and 2016, corn yields on high productivity farmland averaged 192 bushels per acre while corn yields on low productivity farmland averaged 179 bushels. This publication includes ten tables: 1. Corn Revenue and Costs, Northern Illinois 2. Soybean Revenue and Costs, Northern Illinois 3. Corn Revenue and Costs, Central Illinois with High Productivity Farmland 4.
Although water availability and needs can vary by region of the country, Illinoisâ rainfall usually provides all of the water needed to grow crops, like corn, soybeans, and wheat. Illinois averages 32-48 inches of rainfall each year. Corn needs approximately 20-25 inches of rainfall to produce average yields. Corn is deep-rooted and is relatively efficient at water use during its peak growth, but if you were to apply most of the water for a corn crop through an irrigation system, it would require the equivalent of 7 to 10 inches of rainfall.