When I started gardening, I assumed you could put seeds in dirt, add water and watch them grow into plants. That uneducated ...

In making a pH determination on soil, the sample is saturated with the dye for a few minutes and the color observed. This method is accurate enough for most purposes. Kits (pH) containing the ...

Wide range - 4.00 to 11.00 pH in 1.0-pH units Keep tabs on soil pH with this TesTab(R) kit It is ideal for younger students and teachers who want an alternative to liquid pH indicators Kit ...