Corn Plant Tissue Composition at Different Growth Stages

When we perform plant tissue analysis on corn currently, we analyze the nutrient (N,P,K, etc) content of the plant.

Last year we measured the structural and mobile components (protein, fibre and sugar) to learn about variation that occurs in season. Here are some of our findings.

Plant composition changes at different growth stages:

Plant Comp by Growth Stage

As the plant grows the structural component of the plant increases. Protein and mineral content will decrease as the plant matures. Sugars follow the decreasing trend until tasselling where the levels generally climb again.

Variability in Composition Over Time

Corn Variabilty

For the 2015 growing season protein, fibre, sugar and total mineral content is available on our corn plant tissue tests for FREE! If you are interested in plant tissue testing you can contact us here: