Plant Nutrition

Macronutrients are...

• Present in the soil in the greatest quantities.
• Used by the plant in greatest quantities.
• Present in the soil in the smallest quantities.
• Used by the plant in the smallest quantities.

Which of these groups are micronutrients?

• Carbon, Hydrogen, Oxygen
• Copper, Manganese, Zinc
• Nitrogen, Phosphorus, Potassium
• Sulfur, Magnesium, Water

When a plant has yellow leaves caused by a nutrient deficiency, the condition is called:

• Chlorosis
• Necrosis
• Defoliation
• Exfoliation

The three primary nutrients necessary for plant growth are:

• Boron, Calcium, Iron
• Chlorine, Sulfur, Zinc
• Magnesium, Manganese, Molybdenum
• Nitrogen, Phosphorus, Potassium

What is the function of nitrogen in plant growth? 

• Make seeds.
• Produce yellow color in leaves.
• Produce healthy green color in leaves.
• Promote flowering.

Which elements do plants need in the smallest amount?

• Macronutrients 
• Micronutrients
• Primary Macronutrients
• Secondary Macronutrients

Calcium, magnesium, and sulfur are:

• Macronutrients
• Micronutrients
• Deficiencies
• Toxicities

If a plant has a phosphorus deficiency, a symptom that usually appears is:

• Cupped or curled leaf tips
• Purplish color in older leaves
• Rotting fruit on young plants
• Yellow leaves with green veins

Which elements are considered non-mineral nutrients?

• Carbon, Hydrogen & Oxygen

• Carbon, Hydrogen, Oxygen and Nitrogen

• Carbon, Potassium, Hydrogen & Nitrogen

Select all of the following that are macronutrients.

• calcium

• zinc

• copper

• sulfur

• magnesium