The N excess/deficit factor for 100 kg of an organic material that contained 60% C (carbon) and 0.5% N (nitrogen) would likely be (assuming that 35% of the carbon is metabolized by microorganisms and the carbon and nitrogen are assimilated in a 10:1 ratio).

The depth of the "furrow" is variable, but suppose we consider it to be 8 inches. If a soil has a bulk density of 1.07 g/cm^3 and a soil organic matter content of 4.67 % by weight, then what is the mass of soil organic matter (in pounds) that is contained in the AFS that is 1 acre in extent and 8 inches in depth?