With a pH of 5.9 the number one thing you need to get done this fall, if at all possible, is to get some fine grind lime on that field. Lime is probably the slowest to get working so you really need to get some on now, based on my own experience with low pH soils. Lime trucks tend to compact the soil so get as much on as you can this fall rather than multiple small applications. P & K can both be applied later if necessary. I would get the lime on first and most important. jmho.

Jim at Dawn