Hi @lupafilotaxia! This is quite an indepth study on biofertilizers, it's importance to our ecosystem and health as well as the preparation processes.
This article is a treasure and I have bookmarked it for more study. I'll say biofertilizers are a much better improvement to the use of synthetic products to grow our foods.
Though in most part of the world, synthetic products are still used in agriculture. The effects are dangerous not only on our health but also on our environment as well.
This is excellent work. Thank you for sharing this information with us. 🙂