CFA Label Interpretation and Calculations 2

Question 1

A fertilizer bag lists the guaranteed analysis as 10-5-8. What does the middle number (5) represent?

Accepted Answer

Available phosphate (P2O5) percentage

Answer

Total nitrogen percentage

Answer

Soluble potash (K2O) percentage

Answer

Calcium percentage

Question 2

A fertilizer label states 'Apply at 4 lbs per 1,000 sq ft.' How many pounds are needed for a 15,000 sq ft lawn?

Accepted Answer

60 lbs

Answer

45 lbs

Answer

75 lbs

Answer

80 lbs

Question 3

What does the term 'slow-release nitrogen' on a fertilizer label indicate?

Accepted Answer

Nitrogen is converted by soil microbes or water over time

Answer

Nitrogen is in nitrate form only

Answer

Nitrogen content is lower than fast-release products

Answer

Nitrogen must be watered in within 24 hours

Question 4

A 50 lb bag of 20-0-10 fertilizer is applied to 5,000 sq ft. How many pounds of actual potash (K2O) are applied?

Accepted Answer

5 lbs

Answer

2 lbs

Answer

10 lbs

Answer

50 lbs

Question 5

Which section of a fertilizer label is legally required to list nutrient guarantees?

Accepted Answer

Guaranteed analysis

Answer

Directions for use

Answer

Precautionary statements

Answer

Storage instructions

Question 6

A spreader is calibrated to deliver 3.5 lbs of product per 1,000 sq ft. What total product is needed for an 8,500 sq ft area?

Accepted Answer

29.75 lbs

Answer

24.5 lbs

Answer

28.0 lbs

Answer

35.0 lbs

Question 7

A fertilizer label lists 'Derived from: urea, muriate of potash.' What does this statement indicate?

Accepted Answer

The sources of nutrients in the product

Answer

The fertilizer is organic

Answer

The manufacturing process used

Answer

The solubility of the product in water