Download 00 Nutrients (Answers)

24.01 Identify macro and micronutrients and the related chemical or environmental plant deficiencies
*Match the term with its definition:
a. Elements needed in the smallest amounts
__F___ 1. Nutrient Deficiency
b. Produce healthy green color in plants
__A___ 2. Micronutrients
c. Plant is deficient of this nutrient if it shows
purplish color in older leaves.
d. When a plant has yellow leaves caused by a
nutrient deficiency
e. Nutrients needed in the greatest quantity
__E___ 3. Macronutrients
__G___ 4. Chlorine
__B___ 5. Nitrogen
f. Causes plants to look unhealthy; occurs in a plant
is getting less nutrients than it needs to live and grow
g. This nutrient only has a problem when there is too
much of it in a greenhouse plant production.
_C____ 6. Phosphorus
_D____ 7. Chlorosis
8. List the 9 macronutrients and put them into their correct category:
Non-Mineral Elements
a. Carbon
Primary Nutrients
d. Nitrogen
Secondary Nutrients
g. Sulfur
b. Hydrogen
e. Phosphorus
h. Magnesium
c. Oxygen
f. Pottasium
i. Calcium
24.02 List the different types of fertilizers and the advantages and disadvantages of each.
1. The analysis of a fertilizer shows the percent by weight of
___Nitrogen___-_Phosphorus___-__Pottasium___
2. An incomplete fertilizer analysis would appear as 15-0-14 or 20-10-20.
3. If the fertilizer analysis were 10-10-20 is ratio would be __1__:__1__:__2__
4. __Soluble____________ fertilizers dissolve in water.
5. __Organic____________ fertilizers improve the physical condition of soil, but
__Inorganic__________ fertilizers are what most commercial chemical fertilizers are made of.
24.03 Demonstrate the application of various types of fertilizers
Match the fertilizer application with its method:
__B___ 1. Hozon Proportioner
__C___ 2. Commander/Smith Proportioner
__A___ 3. Foliar spraying
__E___ 4. Perforating
__F___ 5. Broadcasting
__D___ 6. Fertigation
a. Quickly addressing a micronutrient deficiency
problem
b. A relatively inexpensive venture-type
proportioner to mix concentrated liquid fertilizer in
the watering system of a greenhouse.
c. Positive-displacement fertilizers that proportion
concentrated liquid fertilizer into a greenhouse
watering system.
d. Combining fertilizer and water/irrigation at the
same time.
e. Drilling holes about 15” deep and putting granular
fertilizer in the holes and cove the holes under a
peach tree.
f. Spreading a granular fertilizer over your entire
nursery soil.
7. Lee is placing a band of fertilizer on each side of seeds he is sowing. He needs to be certain that the
seeds are not in the fertilizer and that the fertilizer is not directly below the seeds to prevent
___damage_______ to plants.
8. Benny has a 25,000 square foot lawn. If her soil test report recommends one pound of nitrogen per 1,000
square feet, how many pounds of nitrogen will she need?
25
9. Julie’s soil test report recommends one pound of nitrogen per 1,000 square feet of turf grass. If her lawn
is 32,000 square feet, how many pounds of nitrogen would she use?
32