(question originally asked by Fidelity W).
I am investing in a soil testing tool kit and see there are a variety of refractometers out there. Are they all the same? Does it matter which I get? They seem to vary between £40 and £90 so I presume there must be a difference? If you have any advice on where to get any of the kit eg the soil probes – those look pretty basic and standard, do let me know.
I cannot wait to get going to get a baseline on a few of our key fields.