Fertilizer Grade Identification Quiz
Test your ability to identify fertilizer grades from product and label details. Please answer all questions to the best of your knowledge.
What does the "grade" of a fertilizer typically refer to?
*
The percentage of nitrogen, phosphorus, and potassium
The particle size of the fertilizer
The brand of the fertilizer
The price per kilogram
Enter the three numbers you would expect to see on a standard fertilizer label (N-P-K):
*
Which of these is a common fertilizer grade?
*
10-10-10
100-0-0
1-2-3-4
0-0-100
If a fertilizer label reads 20-5-10, what is the percentage of phosphorus?
*
Select the element represented by the first number in a fertilizer grade:
*
Nitrogen (N)
Phosphorus (P)
Potassium (K)
Calcium (Ca)
A product is labeled 0-20-20. Which nutrient is absent?
*
Nitrogen
Phosphorus
Potassium
Sulfur
How confident are you in your ability to identify fertilizer grades?
*
Not confident
1
2
3
4
Very confident
5
1 is Not confident, 5 is Very confident
Briefly explain how you would identify a fertilizer grade from a product label.
Submit Quiz
Should be Empty: