Agronomy Sustainable Agriculture and Conservation 1 — Questions and Answers
Question 1: Which USDA program provides financial assistance to farmers for implementing conservation practices?
- Federal Crop Insurance Program
- Environmental Quality Incentives Program (EQIP) (Correct answer)
- Commodity Credit Corporation (CCC)
- Packers and Stockyards Program
Correct answer: Environmental Quality Incentives Program (EQIP)
EQIP provides technical and financial assistance to agricultural producers to plan and implement conservation practices that improve soil, water, air, and related natural resources.
Question 2: What is the primary greenhouse gas emitted from flooded rice paddies?
- Carbon dioxide (CO2)
- Nitrous oxide (N2O)
- Methane (CH4) (Correct answer)
- Ammonia (NH3)
Correct answer: Methane (CH4)
Flooded rice paddies create anaerobic conditions that promote methanogenesis by archaea, making rice production a significant source of methane emissions.
Question 3: What is the purpose of a riparian buffer strip adjacent to farm fields?
- Provide additional crop production area
- Filter runoff, trap sediment and nutrients, and protect waterways (Correct answer)
- Supply irrigation water to adjacent fields
- Create habitat for pest insects
Correct answer: Filter runoff, trap sediment and nutrients, and protect waterways
Riparian buffers are strips of vegetation along waterways that intercept surface runoff, trap eroded sediment and nutrients, and protect stream health.
Question 4: Which practice is a core principle of regenerative agriculture that builds soil organic carbon?
- Frequent deep tillage to aerate soils
- Keeping soils covered and minimizing disturbance with cover crops and reduced tillage (Correct answer)
- Applying high rates of synthetic nitrogen fertilizer
- Eliminating all crop rotations
Correct answer: Keeping soils covered and minimizing disturbance with cover crops and reduced tillage
Keeping soils covered with living roots or residue and minimizing tillage disturbance builds soil organic carbon and improves soil biological health.
Question 5: What does the term '4R Nutrient Stewardship' refer to?
- Four recommended fertilizer products
- Applying the right source, right rate, right time, and right place of nutrients (Correct answer)
- A four-year rotation cycle for nutrient management
- Four regulatory agencies overseeing fertilizer use
Correct answer: Applying the right source, right rate, right time, and right place of nutrients
The 4R framework guides nutrient management using the right fertilizer source at the right rate, right time, and right place to maximize efficiency and minimize environmental impact.
Question 6: Conservation tillage is defined as any tillage system that leaves at least what percentage of the soil surface covered by residue after planting?
- 10%
- 30% (Correct answer)
- 50%
- 75%
Correct answer: 30%
Conservation tillage systems are defined by maintaining at least 30% residue cover on the soil surface after planting, reducing erosion risk compared to conventional tillage.
Agronomy Sustainable Agriculture and Conservation 1
Which USDA program provides financial assistance to farmers for implementing conservation practices?