Exploring the Role of NPK in Soil Health

What do the letters NPK stand for in fertilizers?

• Nitrogen, Potassium, Calcium

• Nitrogen, Phosphorus, Potassium

• Nitrogen, Phosphorus, Calcium

• Nitrogen, Potassium, Sulfur

What is the main role of nitrogen in plants?

• Encourages leafy growth

• Stimulates root growth

• Improves disease resistance

• Increases fruit quality

Which process converts ammonium into nitrates in the nitrogen cycle?

• Denitrification

• Nitrification

• Mineralization

• Fixation

What is the role of phosphorus in plants?

• Stimulates early root growth

• Maintains cell turgor

• Controls stomata opening

• Forms amino acids

How does phosphorus become available to plants?

• By binding to soil particles

• Through leaching

• By being locked in sediments

• Through mineralization by bacteria

What is the main function of potassium in plants?

• Stimulates early root growth

• Encourages leafy growth

• Forms amino acids

• Maintains cell turgor

Which of the following is NOT a way potassium is added to the soil?

• Plant residue

• Mineral fertilizers

• Nitrification

• Animal manure

What is the role of magnesium in plants?

• Essential for chlorophyll formation

• Forms amino acids

• Stimulates early root growth

• Maintains cell turgor

Which macronutrient is essential for holding together the cell walls of plants?

• Sulfur

• Potassium

• Calcium

• Magnesium

What role does sulfur play in leguminous plants?

• Encourages leafy growth

• Stimulates early root growth

• Maintains cell turgor

• Plays a role in nodule development