Use PUE Calculator when you need to compute phosphorus use efficiency as yield in kilograms divided by phosphorus applied in kilograms. Enter Phosphorus applied and Yield using the definitions and units below so the result can be reproduced.

Phosphorus applied

Phosphorus applied in kilograms; must be greater than zero.

Yield

Harvested yield in kilograms; must be greater than zero.

The published tool contract uses this rule: Compute phosphorus use efficiency as yield in kilograms divided by phosphorus applied in kilograms.

Phosphorus use efficiency

Kilograms of yield produced per kilogram of phosphorus applied.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small.

Retain the original Phosphorus applied and Yield values and their units alongside the result. NUE Calculator is useful when you instead need to compute nitrogen use efficiency as grain yield in kilograms divided by nitrogen applied in kilograms. PNUE provides another view by helping you compute photosynthetic nitrogen use efficiency PNUE in micromoles per mole as the net photosynthesis rate divided by the leaf nitrogen per unit area.

• NUE Calculator

  Compute nitrogen use efficiency as grain yield in kilograms divided by nitrogen applied in kilograms.

• PNUE

  Compute photosynthetic nitrogen use efficiency PNUE in micromoles per mole as the net photosynthesis rate divided by the leaf nitrogen per unit area.

• WUE Calculator

  Compute intrinsic water use efficiency as net photosynthesis in micromoles per square metre per second divided by transpiration in millimoles per square metre per second.