Commercial seed must be tested _____ for the correct germination percentage.

Commercial seed must be tested _____ for the correct germination percentage.
 
  A) every year
  B) every six months
  C) every five years
  D) every eighteen months

Question 2

If the soil pH is too high or alkaline, _____ or iron sulfate may be used to lower the pH.
 
  A) calcium
  B) lime
  C) sulfur
  D) nitrogen

Question 3

For new lawns, how many inches of topsoil should be spread over the rough grade subsoil?
 
  A) 10 inches
  B) 4 inches
  C) 6 inches
  D) 2 inches

Question 4

Kentucky bluegrass does not grow in which region of the country?
 
  A) Region 1
  B) Region 2
  C) Region 3
  D) Region 4

Question 5

Sod should not be cut more than _____ inch(es) thick.
 
  A) 1
  B) 2
  C) 3
  D) 4

Question 6

Most lawn grasses grow best in a well-limed soil with which pH level?
 
  A) 5.0-5.5
  B) 5.5-6.0
  C) 6.0-6.5
  D) 6.5-7.0