Yeast nutrient DAP

Diammonium phosphate (DAP), a water-soluble fertilizer, is a common source of nitrogen and phosphorus for plant growth, produced by reacting phosphoric acid with ammonia. It's known for its high nutrient content and solubility in soil. 
Here's a more detailed explanation:
What it is:
DAP is a complex, granular mineral fertilizer containing nitrogen (N) and phosphorus (P). 
How it's made:
It's produced through a controlled reaction of phosphoric acid with ammonia. 
Uses:
Fertilizer: DAP is a widely used phosphorus fertilizer, providing both nitrogen and phosphorus to plants. 
Yeast Nutrient: It's also used as a nitrogen source for yeast during fermentation, helping to maintain yeast viability and activity.