CCA Study Guide 2026
Everything you need to pass the CCA exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CCA Exam Format at a Glance
📚 CCA Topics to Study (61)
✍️ Sample CCA Questions & Answers
1. Which instrument is commonly used in the field to measure soil water matric potential and assist in irrigation scheduling?
Tensiometers measure the matric potential (tension) with which water is held in the soil, providing a direct indicator of how hard plant roots must work to extract water and when irrigation is needed.
2. What is the primary benefit of conservation tillage in soil management?
Conservation tillage helps reduce soil erosion by maintaining crop residue on the soil surface, which protects the soil from wind and water erosion.
3. Which factor is most important when choosing crops for correctional institution farming?
Climate compatibility ensures the crop can thrive in the local conditions, reducing failure and resource waste.
4. Which cover crop species is BEST suited for scavenging residual nitrate from the soil profile following corn harvest?
Cereal rye has an extensive root system, germinates in cold temperatures, and has high nitrate uptake capacity, making it ideal for fall nitrogen scavenging.
5. What is the term for the water lost from the soil-plant system through both evaporation and plant transpiration?
Evapotranspiration (ET) combines soil evaporation and plant transpiration and is a key measure for irrigation scheduling.
6. Sulfur deficiency in crops is most commonly associated with which of the following soil and environmental conditions?
Sulfur deficiency has increased as atmospheric SO2 deposition declined; coarse, low-OM soils hold little sulfate and are most vulnerable.