CCA - Certified Crop Advisor Crop Management Systems Questions and Answers

Question 1

A producer practicing no-till farming on a field with heavy residue cover is planting corn into cool, moist soils.
Which of the following is the most significant potential benefit of using a starter fertilizer in a 2x2 band placement?

Accepted Answer

Enhanced early-season vigor and nutrient uptake in unfavorable conditions.

Answer

Increased germination rates due to seed-placed nutrients.

Answer

Reduced risk of soil compaction from fertilizer application equipment.

Answer

Complete elimination of the need for in-season nitrogen applications.

Question 2

Which of the following best defines the 'Economic Threshold' in an Integrated Pest Management (IPM) program?

Accepted Answer

The pest population density at which control measures should be initiated to prevent the population from reaching the Economic Injury Level.

Answer

The pest population density at which the cost of control equals the value of the crop.

Answer

The maximum pest population a crop can tolerate without any yield loss.

Answer

The point where 100% pest mortality is achieved after a pesticide application.

Question 3

A primary benefit of implementing crop rotation is the disruption of pest life cycles. How is this achieved?

Accepted Answer

By removing the specific host plant a pest requires for survival and reproduction for a period of time.

Answer

By increasing the genetic diversity of the cash crop, making it more resistant to all pests.

Answer

By introducing allelopathic crops that are toxic to all soil organisms.

Answer

By creating a more favorable environment for a wide range of generalist predators.

Question 4

When terminating a grass cover crop like cereal rye using a roller-crimper for maximum effectiveness in an organic system, at which growth stage should the operation be performed?

Accepted Answer

Anthesis (flowering/pollen shed)

Answer

Vegetative stage (tillering)

Answer

Boot stage

Answer

Dough stage

Question 5

A farmer is transitioning a field from conventional tillage to a long-term no-till system. Which of the following is a key soil health benefit they can expect to see over time?

Accepted Answer

An accumulation of soil organic matter and improved soil structure.

Answer

A rapid decrease in soil pH requiring immediate lime application.

Answer

Increased soil bulk density in the upper soil profile.

Answer

Reduced water infiltration rates due to surface crusting.

Question 6

A grower wants to use a cover crop to suppress weeds and reduce soil erosion, but needs to terminate it effectively before planting a cash crop. Which termination method is generally considered least effective when used alone and often requires a follow-up action to prevent regrowth?

Accepted Answer

Mowing the cover crop.

Answer

Application of a systemic herbicide like glyphosate.

Answer

Tillage that incorporates the cover crop residue.

Answer

Roller-crimping at the correct growth stage.

A producer practicing no-till farming on a field with heavy residue cover is planting corn into cool, moist soils.Which of the following is the most significant potential benefit of using a starter fertilizer in a 2x2 band placement?

A producer practicing no-till farming on a field with heavy residue cover is planting corn into cool, moist soils.
Which of the following is the most significant potential benefit of using a starter fertilizer in a 2x2 band placement?