Assertion: fertilizer | /r/MadeOf | zinc
Facets:
value: besides the primary elements
type: OTHER
Source sentences:
text: Some fertilizers also contain certain "micronutrients," such as zinc and other metals, that are necessary for plant growth.
text: Besides the primary elements (N, P and K) the fertilizer may contain secondary plant nutrients, such as calcium, magnesium, sulfur, iron, manganese, zinc, copper, and molybdenum.