Sparse beetroot germination

Something I've not experienced before.......I'm usually thinning out the excess seedlings but this year I'm having to dot in more seed in the gaps.

I always run a plank of wood along the soil to make a 'V' shaped trench and water this well. I then place the seeds about 3" apart (Red Ace is a monogerm variety.....1 plant per seed) and cover the seed with compost. This way I can see where the rows are and the seeds come through the fine compost very quickly....usually!