PH

I thought i would try a soil ph tester (bought from BQ for £1.99) as i see the ph question gets mentioned here.

Tried 2 places on my plot and got same reading for both tests which is between the light green Neutral 7.0 and the dark green Alkaline 8.0.

So i guess my soil is Slightly Alkaline 7.5.

Now that ive worked that out it doesnt actually mean a great lot to me as still learning all this stuff. So could someone please explain to me,
 if this is where my soil should be at?
if not what should i be doing?
And if there anything thats praticulary good and bad to grow on a soil with that ph?

I always thought my soil is real good so im hoping the ph test shows that. help 

Your soil pH is high and either you are on a naturally alkaline soil, limestone or chalk, or it has been well limed in the past. Better alkaline than acid. The pH scale is logrithmic, which means that pH 8 has 10 times the lime of pH 7, and pH 7 has 10 times the lime of pH 6 and so on.
When soils have a pH much above 8 or below 5 some of the nutrients become unavailable to the plants, especially phosphate.

Is yours is an electronic tester with a probe to stick into the soil? These can give variable results and I would take them as a rough guide, which is all you need. Make sure that the soil is moist when you test and test in many more than 2 places.

If you are testing with a kit with test tubes and indicator, the proper way to do it is to take several samples with a trowell down to about 6 inches, mix thoroughly, and test the mixture.

pH of my plot's been almost 8 since I've had it. Had no issues with spuds, nor anything else for that matter. Never been limed by me, so I guess the previous owner done it. Coming down slowly over the years with additions of manure though...