Use LDMC Percent when you need to compute leaf dry matter content as a percentage from oven dry leaf mass over turgid fresh leaf mass. Enter Leaf dry mass and Leaf fresh mass using the definitions and units below so the result can be reproduced.

Leaf dry mass

A finite measured or assumed value greater than or equal to 0, expressed in g.

Leaf fresh mass

A finite measured or assumed value, expressed in g.

The published tool contract uses this rule: Compute leaf dry matter content as a percentage from oven dry leaf mass over turgid fresh leaf mass.

Leaf dry matter content

The calculated leaf dry matter content in %.

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 Leaf dry mass and Leaf fresh mass values and their units alongside the result. Leaf Nitrogen Content is useful when you instead need to compute leaf nitrogen content in milligrams per gram of leaf dry mass as the nitrogen mass divided by the leaf dry mass. Leaf Phosphorus Content provides another view by helping you compute leaf phosphorus content in milligrams per gram of leaf dry mass as the phosphorus mass divided by the leaf dry mass.

• Leaf Nitrogen Content

  Compute leaf nitrogen content in milligrams per gram of leaf dry mass as the nitrogen mass divided by the leaf dry mass.

• Leaf Phosphorus Content

  Compute leaf phosphorus content in milligrams per gram of leaf dry mass as the phosphorus mass divided by the leaf dry mass.

• Leaf Potassium Content

  Compute leaf potassium content in milligrams per gram of leaf dry mass as the potassium mass divided by the leaf dry mass.