Push the handle forward, with the spade still in the soil to make a wide opening. Using a trowel, push the tool to the desired depth into the soil. Sampling ProceduresĬlear the ground surface of grass thatch or mulch (Figure 2). Collect samples with tools like trowels, shovels, spades, hand probes or hand augers. Never use tools or containers that have been used for fertilizer or lime. Use clean sampling tools and containers to avoid contaminating the soil sample. This allows adequate time for sample analysis, data interpretation, and fertilizer and lime application. Soil sampling should be done well in advance of planting or spring green-up. For gardens, ornamentals, mixed fruit trees, and wildlife plots, sample to a depth of 6 inches.For lawns, sample to a depth of 4 inches.The depth of sampling depends on the type of plants being grown. For trees and shrubs, take soil samples from six to eight spots around the dripline of the plants.

Collect 8-10 soil samples from each location (zone) as shown in Figure 1. Use a zigzag approach when taking samples.An area that has been divided according to obvious differences in plant types, plant performance, soil types, and drainage is shown in Figure 1.

Divide the area such that each soil sample represents one plant type or condition. This will help in record keeping and ensure that the soil is taken from throughout the entire area. Map out the area where the plants are to be grown or are presently growing. Area divided according to vegetation and soil characteristics.

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