28/08/2026
Nitrogen dioxide is a danger during early silage fermentation. Formed as nitrates break down in the clamp, even brief exposure to this heavy gas can cause severe respiratory harm. Gas can occur in all silages, and maize this year might be especially prone to it due to the harvest conditions.
Always prioritise ventilation, look out for brown or yellow vapours around the pit edge, and restrict access to the clamp area for the first 7-10 days after filling.