Chicken manure is not problem..it is the shavings..they will take couple of years to dissapear.
I would save them for later on..if you can get hold of some grass clippings..use those to mulch the ground between potato rows and spread the shavings and droppings on top of that. Then over the time all that will naturally work its way into the soil..and the mulchings will keep the soil underneath nicely moist.
I found woodshaving bit too much trouble just because it took that much longer to break down..now I'm using shredded straw in chickens shed and that will break down on soil in no time. Actually I don't even see any bits of straw anymore..as I clean their shed, I shovel all the stuff outside for girls to scratch. The now 'dirty' straw will soak up the extra moisture from the ground and stop the pen going muddy..once I need to empty to pen onto lottie, its all broken down into lovely crumbly brown stuff... ;D
Nothing waisted and my veg is going to love it next spring.