Assertion: worm's casting | /r/HasProperty | rich
Facets:
value: in phosphorus
type: OTHER
value: in potassium
type: OTHER
value: in nitrogen
type: OTHER
value: in iron
type: LOCATION
value: in calcium
type: OTHER
value: in magnesium
type: OTHER
value: in a soluble form
type: OTHER
value: in sulfur
type: OTHER
Source sentences:
text: Castings contain humic acid which can control plant pathogens while stimulating healthy plant growth and they have a neutral pH. A mixture of organic matter and minerals, castings are also rich in nitrogen, phosphorus, potassium, calcium, iron, magnesium, and sulfur in a soluble form that plants can readily use.
text: These castings are rich in phosphorus, nitrogen and potassium which serve as natural fertilizers for the plants.