Focus on building organic matter first and foremost.......
Quantity per Acre: Each 1% of organic matter in the top 6 inches of soil contains roughly \(1,000\) to \(2,000\) pounds of total nitrogen per acre.
Available Nitrogen: Because most of this nitrogen is locked up in complex molecules, only about 1% to 3% becomes available (mineralized) to plants each year. This equates to roughly 10 to 30 pounds of usable nitrogen per acre annually for every 1% of organic matter.
