Soil testing is BY FAR the most imporatant part of a food plot preparation. After several failed attempts at "plant and pray", I have found that with a soil sample, you up your odds of a successful plot tremendously, provided you follow the recommendations. I use the Biologic sample for a couple of reasons (1) it is easy (2) it is cheap (about $8/sample) (3) it is fast, results emailed in a few days (4) itis plantspecific, meaning if I tell tehm I want to plant brassicus, they will tell me the actual ph, optimum ph, and how much lime and fertilizer i need to add to theplot, and (5) i dont have a local place to take my samples. It is very cehap and easy and takes a lot of guesswork out of it. In the long run, you will same time, $ and frustration with a soil sample. Good luck.