This has been a long time coming. Fertilizer based farming is not sustainable. But the phosphorous problem is at least solved: myco. We're going to get better food and better soil with natural remediation vs fertilizer. The downside is the labor. Its an additional step that has yet to be industrialized yet.

-Spent a decade following a phosphorous solution. (Lack of phos. limited sustainable growth in a fertilizer based national food strategy).