My sweetcorn worked really well this year, huge fat juicy cobs and loads of them.
My tips:
Always plant in blocks, not rows.
Always put LOADS of well rotted manure into the soil before planting. Sweetcorn is a hungry plant.
Keep them watered in dry periods.
When the plant flowers give them a gentle shake to distribute the pollen.
If yours didn't do so good, change the variety next year.
And the old saying is: Walk slowly to pick and walk fast to cook (or something to like that).
I picked most of mine a couple of weeks ago, those that I thought not quite fat enough are still in the veg patch so need my attention...