Autumn Raspberries have yellow leaves - Help!

[Susiebelle]

Can anyone offer any advice please?
I have looked around Lottie site and some other plot holders seem to be in same situation, the leaves are coming through yellow suggesting some deficiency but what?
Would Appreciate any advice.
Many thanks.

[Susiebelle]

[OllieC]

The most likely deficiency at the moment is water.

[macmac]

Mine (Autumn Bliss) get several yellow leaves every year and so do fellow plotholders plants, who have had canes from me. They go on to green up and fruit really well.

[Susiebelle]

Many thanks!

[Ben Acre]

Lack of nitrogen,

[lillian]

Mine always looks better after a feed.