[jonringer117]

Compost takes 20 days to 20 months depending on the feed stock. The main issue with compost is that it can be effective in high-intensity operations like market gardens, but it's much less effective on large acre operations (corn, soy, wheat, etc).

Not to mention that compost is really difficult to come by now.

Unless a farmer is making compost on the side, they can't really treat it as a known input.

I would also argue that chronic over-usage of ammonia-based fertilizers and over-tiling has contributed to degradation to much of the world's farming soil. Which has given rise to many adverse effects such nutrient runoff, poor water infiltration, soil erosion, and downstream effects.