You should know that you will have to spend your money if you consider buying the vibrating screens or soil testing equipments from the garden supply stores but if you send the soil sample to your country extension service’s office then you may not have to pay anything (or a very small amount as the fees). If you have a garden and if you want to grow plants in your garden then you should make the soil of your garden fertile in order to growing the plants there for your landscaping project. You need to ensure the “health” of your soil in order to ensure the health of your plants.