What is phosphorus?
Phosphorus is a type of non-metal element. (1)
Phosphorus is an essential macro-nutrient that is required for plants to build strong cell walls and grow strong roots. (3)

In the human body, phosphorus “forms” itself into phosphate when it is combined with oxygen. (1)

Phosphorus and Humans

Phosphorus and Plants

What contains phosphorus?
plant roots
egg shells (3)
banana peels (3)
bone meal (3)
wood ash (3)
fresh compost (3)

1. https://thecontentauthority.com/blog/phosphate-vs-phosphorus
2. https://askabiologist.asu.edu/moving-sugars-plants
3. https://theindoornursery.com/blog/homemade-phosphorus-fertilizer/