Rapitest Soil Test Kit

Pretty inconsistent results, which I mainly chalk up to operator error. 13 May test: pH 7; N - 2; P - 2; K - 3 June 24: pH - 7.5; N - 1; P - 2; K - 1 or 0 Aug 13: pH7.5; N - 1; P - 1; K - 2 I planted 12 potato plants in a 4’ X 7’ bed (maybe too many?) And got about 20 lb. of potatoes (harvested 90 days after planting). My main problem was getting all the powder out of the caplets, I got most of it but that probably added to the inconsistency.. I’ll probably get better if I keep at it.

good but a little hard to determine colours

easy to use

Very help full and I found no imbalances in my soil samples requiring correction