WorksheetsFertilizer
Total questions: 20
Worksheet time: 9mins
What are the 3 nutrients that a complete fertilizer contains?
Nitrogen, Phosphorus, Hydrogen
Phosphorus, Nitrogen, Potassium
Potassium, Hydrogen Nitrogen
Hydrogen, Potassium, Phosphorus
What is fertilizer labeled with?
5 Numbers
3 Numbers
2 Numbers
Nothing
What could happen to plants if you apply too much fertilizer?
You can burn the plant
You can drown the plant
It will grow too tall
You can never over fertilize
What is the most important soil properties that affects the availability of nutrients?
Amount of Oxygen Present
The amount of water available to the roots
Soil pH
How many plants are in the surrounding area
What is organic fertilizer?
The nutrients in a product come from remains or by- products of once a living organisms.
The nutrients in a product come from a factory.
The nutrients in a product are mixed together by a farmer.
The nutrients in a product are man made.
What is Potassium's symbol ?
K
Na
Mg
Phosphorus's symbol is a?
L
P
Ph
It is a chemical product, not from animals or plants
Organic
Inorganic
Soluble
What is the rate of Nitrogen in the 15-10-5 fertilizer?
15
10
5
What is the elemental sign for Magnesium?
Mn
Mg
Ca
How many essential nutrients are needed for proper plant growth?
10
13
16
If a bag of fertilizer is 20-10-30, what % is Potassium?
20%
10%
30%
What is an incomplete fertilizer?
provides macronutrients nitrogen, phosphorous, & potassium (N-P-K)
provides more than the 3 macronutrients (N-P-K)
Provides only 1 or 2 of the macronutrients
Elements that are essential to plant growth but are only needed in small amounts are called _______.
micronutrients
macronutrients
primary nutrients
secondary nutrients
Elements that are essential to plant growth and are needed in relatively large amounts are called _______.
micronutrients
macronutrients
Fertilizer
Which 3 elements are obtained by the plant from water and air. Hint: Used during photosynthesis and cellular respiration.
Fe, Ca, Mg
N, P, C
N, P, K
C, H, O
Which elemental deficiency is associated with purplish coloration of the leaves?
P, Phosphorus
N, Nitrogen
S, Sulfur
K, Potassium
A pH of 8.7 is _________.
neutral
basic/alkaline
acidic
A neutral pH is __. (number)
6
5
10
Which of these substances would you use to raise a soil's pH?
sulfur
aluminum sulfate
iron sulfate
lime
