Main crop potatoes

We planted 60 King Edwards seed potatoes. The patch had been rotavated, but the soil was stil clay heavy so we dug trenches one spadelength deep and planted the potatoes 10 rows of six , eyes up 15 inches apart. A light scattering of chicken manure pellets and some particularly rich loamy soil on top of the potatoes was all the extra help we gave them. the soil was wet enough that we didn't think it worth the bother of watering, a decisious we may regret. Not much evidence of pests in the soil, but also a little worryingly hardly any worms visible either.