Group questions about
fertilizers
1) A fertilizer is any material
that is used to supply a plant
with one or more
____________.
2) What 3 fertilizers are always
shown in an analysis on a
fertilizer bag?
3)Give an example of a
complete fertilizer analysis.
HOW MATH APPLIES TO THE
REAL WORLD!!!
4)You have a 100 lb. bag of 10-6-4
fertilizer. That would mean you
have 10 lbs of N, 6 lbs of P and 4
lbs of K.
Now what if you only had a 50
pound bag of this same fertilizer.
How much N, P and K would you
have?
5) Now, let’s say you need to
fertilize 5,000 square feet of lawn.
You are using a fertilizer called
Ammonium sulfate which is 20%
nitrogen and have been told to
fertilize the lawn at a rate of 1
pound of actual nitrogen per 1,000
square feet. How many pounds of
ammonium sulfate do you need
of 4-8-12?
6) How many pounds of actual
nitrogen would be in 1 ton of 88-8 fertilizer?
7)
How many lbs. of primary
macronutrients are in 100
pounds of 4-8-12?