Assertion: fertilizer | /r/MadeOf | trace elements
Facets:
Source sentences:
text: They also contain trace elements that improve the growth of plants.
text: While fertilizers contain calcium, magnesium, iron and other trace elements; the major components in “all purpose” fertilizers you buy at the hardware store or nursery are primarily composed of nitrogen, phosphate and potassium.
text: In addition to N-P-K, most fertilizers contain traces of other elements important to plant health.
text: They also contain trace elements that improve the growth of plants.
text: Fertilizers can contain trace elements not shown on the label.