Factsheet Heavy metals in growing media
Factsheet Heavy metals in growing media
Heavy metals occur naturally and through industrial pollution. Some heavy metals are required as trace elements for plant growth. Excessive levels can be harmful. With consumption crops also to human. For food safety and to prevent soil contamination in the environment, legislation limits the total heavy metal content in consumption crops and in raw materials and growing media for soil-based applications. But what about growing media for cultures in pots or containers?