N is too volatile/temporary in the soil to be listed in most soil test reports. It can be a "there today, much less after a few heavy rains" type thing (along with other influences).

The N recommendation is pretty much a "standard" recommendation for a vegetable/garden plot or lawn. It's probably in everyone's report.

The P recommendation is rather "standard" too...10-10-10...you could use a solely providing 0-??-0 source (while applying less/more depending on the relation of the ?? to the 10).

Low P on a lawn can lead to a less dense turf, which can lead to even more leeching and runoff of the existing P. Adequate P provides a rather dense turf (given proper N) which leads to less exposure + runoff + leaching...which leads to less P in follow years needing to be used. P stays in the soil rather well.

Thanks nc-crn for the reply. So you're saying they just gave me a kind of 'standard' treatment recommendation? Do you suggest following their recommendation or finding something with a little more P?

This post was edited by sunbum on Wed, Mar 13, 13 at 22:32

What is the level of organic matter in your soil?
Did the lab not make any recommendation to fix that low soil pH?
How much Nitrogen appears in any soil sample depends on the temperture of the soil when that soil is sampled and that determines the activity of the Soil Food Web which is what determines the level of available N which is what is tested. So testing for N when the SFW is not very active is not a good indication of what the available N will be when the soil is much warmer.
Phosphorus, the P in fertilizer labeling, is needed by plants for proper growth and a deficiency can be seen if the plants develop purpleish streaks, slow growth, failing to set seeds, just a general lack of vigor. There is some evidence that a low soil pH (yours should be in the 6.2 to 6.8 range) can prevent a plant from using many essential nutrients including P.
Appropriate levels of organic matter in the soil are also needed since that is what the Soil Food Web feeds on and they feed your plants what they need when they need those nutrients.