Northeast Region Certified Crop Adviser (NRCCA) Study Resources

In This Section

• PO 16 Drainage class and productivity
• PO 17 Hydrology and landscape
• PO 18.1-2 Surface & Subsurface Drainage
• PO 18.3-4 Random & Pattern Layout
• PO 19.1-2 Location of Bedrock & Topography
• PO 19.3-5 Organic Soils, Type of Crop & Outlet
• PO 20 Drainage system benefits and risks
• PO 21 Hydric soil
• PO 22 Evapotranspiration of crops
• PO 23 Irrigation system requirements & benefits
• PO 24 Methods of irrigation
• PO 25 Irrigation water sources
• PO 26 Irrigation scheduling
• Summary

Competency Area 3: Drainage and irrigation AEM

PO 26. Describe the components of irrigation scheduling.

Irrigation scheduling is a soil water budget accounting process to determine when irrigation is needed and the amount of irrigation water to apply. The important components of irrigation scheduling include:

• Rainfall amount
• Potential evapotranspiration amount
• Field capacity soil water content
• Wilting point soil water content
• Allowable crop depletion factor
• Crop rooting depth
• Time of planting