Willow Spring, NC. Willow Spring is located close to the center of North Carolina. Willow Spring is between the Wake, Alamance, Harnett, Johnston county. On average, the public school district that covers Willow Spring is better than the state average in quality. The Willow Spring area code is 919.
The average U.S. soybean yield for 2014 is now estimated at the record level of 46.6 bushels per acre, which is an increase from the August USDA estimate of 45.4 bushels per acre.
For example, a 150-bushel-per-acre corn will remove 135 pounds per acre N, 56 pounds per acre P2O5 and 41 pounds per acre K20. At current fertilizer prices, total N, P and K nutrient value in the grain would be about $112 per acre. Likewise, a 40-bushel-per-acre soybean crop will remove 152 pounds per acre N, 32 pounds per acre P 2 O 5 and 56 pounds per acre K 2 0. Nutrient removal rates indicate the variations in N, P and K needs among different crops.