Luster Leaf 1602 Soil Test Kit, 20

Does the job but sometimes a bit vague.

We used this on our garden after a number of fruit trees died inexplicably. I also used it to test wood ash that I have in large quantities from a biomass boiler. Results seem a little unconvincing. Apparently my Potash contains no Potash and the PH balance turned blue despite blue not being an option. Bizarre. I think it pays to take a lot of samples and follow the instructions to the letter. Putting the capsule contents into the test chambers is really difficult. It requires the patience of a saint and a steady hand. You will spill it. Everybody spills it. The test preparation conditions are stringent ("You cannot touch the soil!" "Mix soil with water for an hour or 24 hours depending upon soil type!") It's rocket science and you get the feeling you have probably done it wrong so you have no faith in the result. However as a rough rule of thumb it should give you a reasonable ready-reckoner. Better than nothing. There must be a way of making these tests easier and giving the user more confidence in the result.