Deficiency after topping

Have a few plants with the exact same issue. Topped them both at the same time 4 days ago and new growth has started to yellow. The fan leaves look green and healthy but the veins are yellow also. Any ideas? From what I've read I'm thinking sulphur deficiency but haven't ruled out nitrogen. Unfortunately can't upload pictures right now.

Perimeters?

Nitrogen def. would show up in the older growth first. Hopefully they'll have the picture uploading issues worked out soon.