> You keep throwing the phrase "petro-chemical fertilizers"...

Given that most fertilizers are composed of chemicals derived from petroleum, it's accurate. I don't use the term "conventional farming" because these techniques are extremely modern.

> Can you please elaborate on how fixing nitrogen on industrial scale is "disastrous"

To be clear, fixing nitrogen is fine, bacteria do this already naturally. The problem with fertilizers used at the industrial scale is that they end up ruining local water supplies + killing local ecosystem of bacteria and insects [1]. After a few years of using industrial fertilizers, famers end up ruining their soil and end up being dependent on fertilizer suppliers for future crops.

[1] https://www.scientificamerican.com/article/how-fertilizers-h...