Readings: Session 4
What is Soil Quality? USDA NRCS (2001).
Conservation Tillage Fact Sheet: Soil Quality Indicators for Whole-farm Management in the Central Great Plains. R.Bowman et al. (2004).
Soil Quality – Agronomy. Technical Notes. USDA – NRCS
- No.16: Interpreting the soil conditioning index
- No.2: Conservation crop rotation effects on soil quality
- No.6: Legumes and soil quality
What is soil quality?
- What is soil quality?
- How do we compare inherent and dynamic soil quality?
- What are the indicators of soil quality?
- How does soil organic matter influence the physical, chemical, and biological indicators for soil quality?
- What is the relationship between bulk density and soil compaction?
- What is the relationship between soil structure and water holding capacity?
- What are the good cultivation practices for managing soil quality? How are they useful in maintaining or enhancing soil quality?
Conservation Tillage Fact Sheet
- What three factors greatly influence soil quality?
- What are the important soil quality indicators? How are they related to soil quality?
- What are the field indices for soil quality? Why are they important?
- What are the recommendations for improving soil quality?
- How do we link conservation tillage to the indicators mentioned in the reading?
Soil Quality: Agronomy - Technical Notes
- How do field operations and the erosion factor affect organic matter content in soil?
- What are the other factors that affect organic matter content in soil?
- When is the calculated SCI less reliable? What other factors would one consider if the goal was to improve the soil quality?
- True or false: When SCI is near 0, the farmer need not worry too much as it means that the organic matter content in the soil is being maintained.
- What factors should one consider while deciding on crop rotation?
- What is the effect of incorporating organic residue into soils through tillage operations using a moldboard plow?
- Why does using a sod crop in rotation reduce compaction and soil erosion?
- What are the benefits of including legumes in crop rotation?