Agriculture Harvest Index Percentage

A partitioning efficiency KPI. Distinct from crop yield per area.

Harvest index % = economic ÷ biological yield × 100.

Tip: Keep “Economic Yield” and “Biological Yield” on the same basis (period, units, and population) before calculating Agriculture Harvest Index Percentage.

Cluster: Agriculture hub · Biology hub · Environmental hub · Energy hub · Percentage guide

Harvest index is economic (grain/fruit) yield divided by total aboveground biological yield, times 100.

Enter economic and biological yield for the same plot and dry-matter basis.

Grain/fruit (or defined product) yield
Total biological yield same units

Harvest Index

Understanding Agriculture Harvest Index Percentage

How we calculate. Harvest index % = economic ÷ biological yield × 100. The form uses the same arithmetic as the worked examples on this page. See our methodology and accuracy policy.

Real-world scenario: A typical Agriculture Harvest Index Percentage case uses economic yield 4 and biological yield 10. Enter the same figures below to reproduce the worked path.

What is Agriculture Harvest Index Percentage?

A partitioning efficiency KPI. Distinct from crop yield per area.

  • Same basis (usually dry)
  • Same plot
  • Biological > 0

The Formula

Harvest Index
HI % = (Economic yield ÷ Biological yield) × 100

Worked Example

Scenario: Economic 4.0; biological 10.0.
Step 1: 4 ÷ 10 × 100 = 40%
Answer: Harvest index is 40%.

Common Use Cases

  • Homework: crop physiology
  • Breeding: partitioning
  • Study: pair with yield

Pro Tips

  • Match dry-matter rules
  • Don’t use area yield alone
  • Freeze organ definitions

Limitations: Agriculture Harvest Index Percentage results are educational agriculture and farm-planning aids—not agronomic prescriptions, pesticide labels, veterinary advice, or legal compliance. Confirm units and recommendations with your extension service, agronomist, or instructor.

FAQ

Same as crop yield?

No. Yield is mass÷area. Harvest index is economic÷biological mass share.

Include roots?

Only if your biological-yield definition includes them—state the rule.

Authoritative References

For agriculture study concepts, consult:

  • FAO — food and agriculture context
  • USDA — production and statistics context
  • Extension — applied farm education resources