CCA Nutrient Management

Question 1

Which nutrient is most often limiting in crop production?

Accepted Answer

Nitrogen

Answer

Phosphorus

Answer

Potassium

Answer

Calcium

Question 2

What is the primary benefit of using a soil test before fertilization?

Accepted Answer

It determines existing nutrient levels

Answer

It increases crop yield directly

Answer

It reduces equipment wear

Answer

It eliminates the need for fertilization

Question 3

Which nutrient is most likely to leach through the soil profile?

Accepted Answer

Nitrate

Answer

Phosphorus

Answer

Potassium

Answer

Calcium

Question 4

What does the term '4Rs' refer to in nutrient stewardship?

Accepted Answer

Right source, Right rate, Right time, Right place

Answer

Right price, region, ratio, rate

Answer

Research, Results, Resources, Reporting

Answer

Reduction, Regulation, Renewal, Recycling

Question 5

Why is phosphorus typically banded rather than broadcast?

Accepted Answer

It places nutrients close to developing roots

Answer

It prevents leaching

Answer

It improves crop color

Answer

It enhances foliar absorption

Question 6

What is the best strategy to reduce nitrogen volatilization?

Accepted Answer

Incorporating fertilizer or using urease inhibitors

Answer

Broadcasting urea on dry soil

Answer

Applying ammonium nitrate only

Answer

Irrigating immediately with overhead sprinklers