Page 34 - Griffin Gazette - July 2026
P. 34
CHELATED VS SULPHATE
MICRONUTRIENTS:
Understanding Availability & Iron Stability
Micronutrients are required in small
quantities, but their availability plays a critical
role in plant growth and crop quality. Choosing
the micronutrient form — particularly
sulphates versus chelates — can significantly
affect nutrient solubility, compatibility in
nutrient solutions, and plant uptake.
This article provides an overview of chelated
micronutrients, explains why chelates are
often preferred over sulphate forms, and
highlights the potential risks associated with
mixing sulphate and chelated micronutrients,
with a particular focus on iron.
34 | GRIFFIN GAZETTE 2026
