Anyone tried this test kit specifically? It comes with four tests, one for PH, one for Nitrogen, one for Phosphorous, and one for Potash. I ran these tests on my garden bed today, came up with some good results, except for a nitrogen deficiency. I expected the Nitrogen deficiency though, since right now a compost pile is sitting on top of my garden soil.

Are they pretty accurate?

I've used something similar, and they are pretty accurate. Does yours have a color match scale, I take it? I hate those- very hard to see the color differences!

As far as I know they are pretty accurate in determining the components in the soil. I had used the kit twice before and both times with satisfactory results. I would like more kits like this to make our life more comfortable.