Plant Nutrient Unit

What are the 3 nutrients required on fertilizer labels?

• NDA

• NPK

• KPH

• CHN

Select all of the following that are macronutrients.

• calcium

• zinc

• copper

• sulfur

• magnesium

What does the term acidic mean?

• pH of 7-14; low

• pH of 7-14; high

• pH of 0-7; low

• pH of 0-7; high

What does the term alkaline, or basic, mean?

• pH 7-14; high

• pH 7-14; low

• pH 0-7; high

• pH 0-7; low

Define deficiency.

• too much of a nutrient

• just enough of a nutrient

• not enough of a nutrient

What is the optimum pH range for most plants?

• 4.0-5.7

• 6.0-6.8

• 7.0-8.8

If a plant turns a purple to brown color, what deficiency does it likely have?

• nitrogen

• potassium

• calcium

• phosphorus

What are the 3 nutrients required on fertilizer labels?

• NDA

• NPK

• KPH

• CHN

Nitrogen is essential for photosynthesis and chlorophyll formation.

• True

• False

___________ are used in relatively large quantities by plants.

• macronutrients

• micronutrients

• trace elements

• none of the above