Northeast Region Certified Crop Adviser (NRCCA) Study Resources

In This Section

• PO 27 Health & indicators
• PO 28 Compaction
• PO 29 Compaction in Northeast USA
• PO 30 Long-term intensive crop production
• PO 31 Soil compaction factors
• PO 32 Variable susceptibility
• PO 33 Root/shoot growth, crop yield
• PO 34 Strength & water content
• PO 35 Penetrometer
• PO 36 Degradation from compaction
• PO 37 Soil compaction prevention
• PO 38 Soil compaction remediation
• Summary

Competency Area 4: Soil health and compaction

PO 34. Understand the relation between soil strength and soil water content and its implication for root growth.

Soil strength is highly correlated with water content. When the soil is dry, soil strength is high, and when it is wet, soil strength is low. The effects of soil compaction on soil strength are especially severe on root penetration in dry periods of the year (summer).