Title: Calculate the agronomic fertilizer use efficiency (AFUE).
Course: Biological Applications in Agriculture (18308-I) > Section: Understanding Principles of Water and Soil Quality

Calculation should use the formula: AFUE = (Y - Y0) / FT, where Y is the yield with fertilizer, Y0 is the yield without fertilizer, and FT is the amount of fertilizer applied (e.g., lb./acre). Calculation should include

- soilless and traditional systems
- nutrient recommendations based on the soil test, pH testing, and/or the reading from the EC meter.

Process/Skill Questions:

- What happens if the pH is out of range?
- What do macro- and micro-nutrient deficiencies look like in plants?
- What types of technology identify plant health?
- How is AFUE calculated?
- What does AFUE measure?