Assertion: fertilizer's level | /r/AtLocation | range
Facets:
Source sentences:
text: Soil testing will determine whether the soil pH and nutrient (phosphorus, potassium, calcium, and magnesium) levels are in a range that favor turfgrass growth.
text: If a soil test report indicates the pH and nutrient levels are in the range needed for plants to be grown, you may not need to sample every year.