A newly identified disease affecting corn and sorghum can closely resemble iron deficiency, potentially leading farmers to ...

Microscopic ocean algae produce a huge share of Earth’s oxygen—but they need iron to do it. New field research shows that when iron is scarce, phytoplankton waste energy and photosynthesis falters.

If the leaves on your seedlings are turning a sickly yellow or developing a purple tinge, these common nutrient deficiencies ...