While no home kit can give the accuracy of a lab test, La Motte comes close and certainly has the advantages of convenience and cost-effectiveness.
Kit provides materials for 30 pH, 15 nitrogen, 20 phosphorus & 15 potassium tests. Mix a soil sample with a reagent solution in a test tube & compare the resulting color to standards on laminated color charts.
Complete information for interpretation is provided in 2 booklets. Included is a pH preference guide for over 600 plants, trees and shrubs.
If you find your soil deficient in N, P or K, see our Fertilizer Solutions Chart for organic options.
Purchased this kit for a middle school garden research project. With basic safety training and the printed directions from the kit, 12-year-olds were able to generate a spreadsheet for the macronutrients and pH in our raised beds, a turf research area, and a small, high density orchard. The soil book and test interpretation materials with the kit are very clear and provide all information needed to compare crop needs to test results. Would like a means of replenishing the kit instead of purchasing a new one.Review by Garden Teacher (on 11/16/14)