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 22. Explain the factors that influence the potential and actual evapotranspiration of crops.

The factors that influence the actual evapotranspiration of crops, and the overall (seasonal) water requirements and irrigation management decisions are:

• Type of plant
• Rooting depth and distribution
• Adaptation ability to water stress
• Growth and development stage
• Plant health