[mbroshi]

Sounds like an interesting--although presumably not easily and quickly scalable--solution to fertilizer shortages. I am dubious about the environmental improvement. According to a meta-analysis[0], chemical fertilizers produce less ammonia emissions

> However, ammonia emissions, nitrogen leaching and nitrous oxide emissions per product unit were higher from organic systems.

Basically, chemical fertilizers are much more efficient and have more uniform distribution of nutrients.

[0]: https://www.sciencedirect.com/science/article/pii/S030147971...