Collecting Soil Samples
Proper collection of a representative soil sample is important for accuracy and analysis of test results. Follow these steps to obtain a good sample.You Will Need:
- Clean plastic bucket
- Soil probe
- Trowel or shovel
Step 1
Identify uniform areas to be tested.
Identify uniform areas to be tested.
Step 2
From each area, take enough samples to properly represent the area – 4 to 5 cores or slices are adequate for the average garden or lawn.
From each area, take enough samples to properly represent the area – 4 to 5 cores or slices are adequate for the average garden or lawn.
Step 3
Collect a vertical sample starting at the surface of the soil and digging 6 inches deep for gardens and 3 inches for lawns. Remove all plants, sod or thatch from the sample.
Collect a vertical sample starting at the surface of the soil and digging 6 inches deep for gardens and 3 inches for lawns. Remove all plants, sod or thatch from the sample.
Step 4
Mix all the samples thoroughly in the bucket. Bring two cups of the mixed soil to your local Extension Office in a resealable plastic bag. Samples may also be brought or shipped directly to the KSU Soil Testing Lab.
Mix all the samples thoroughly in the bucket. Bring two cups of the mixed soil to your local Extension Office in a resealable plastic bag. Samples may also be brought or shipped directly to the KSU Soil Testing Lab.
Step 5
Samples should be dry. If wet, air dry. Do not use heat to dry samples.
Samples should be dry. If wet, air dry. Do not use heat to dry samples.
Step 6
Repeat the sampling procedure above on each area to be tested.
Repeat the sampling procedure above on each area to be tested.
Tips and Reminders
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Separate soil tests should be done on a garden or lawn, or between the front lawn and back lawn if there are noticeable differences.
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Avoid sampling areas that might give misleading results.
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If information is desired on unusual areas, obtain a separate sample for these areas.
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