This is only my 3rd year growing potatoes. I am looking for tips on fertilizing them. I put in about 25 yukon golds, each year, and the plants have always looked very healthy, but they don't always make a lot of potatoes. Usually anywhere between 3 and 5. I have them in a deep raised bed with good soil, and have usually only fertilized a few times with Drammatic - K, a fish kelp fert. Should I be bumping up the potassium even more?
I dig them in really deep, about 12", then fill in behind them as they grow, and hill up the soil a bit when they get above ground.
I may be planting them to close together, but they never seem to be crowding each other out (about a foot apart, which is what I saw recommended for Y.G.'s))
