I find this the easiest way to get seeds to stay on the dough. Basically, the seeds are applied at the beginning of the final proof. A light misting of water helps the seeds stick to the dough.

Here are more detailed instructions...

> Sprinkle your seeds on a rimmed baking sheet.

> When the dough is shaped for the final proof, lightly mist the top and sides with water.

> Gently place the dough, top side down, on the seeds and (for batards) rock it back and forth or (for boules) rotate it.

Let the loaves proof (in a banneton or on the bench - whatever you do) and bake as usual.

I use this method for small seeds such as poppy or sesame. Doesn't make a mess and the seeds stay on the bread (as you can see)

SOURDOUGH SESAME SEED / SPELT BATARD

Your bread looks like it has sunflower seeds on top. Don't know if the above method would work for this larger, heavier seed, but it is worth a try