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  1. Sample the part of the soil where the plant roots will grow. For most annual and perennial crops, sample from the surface down to about 6 inches (Figure 5) or to the depth of tillage. For perennial crops such as pastures and orchards or other soils that have limited or no tillage, refer to Evaluating Soil Nutrients and pH by Depth (EM 9014) , for more information about collecting your soil sample.

  2. tices, so getting a good soil sample stands out as a major factor affecting the accuracy and usefulness of soil testing. This fact sheet outlines some specificconsiderations, which should be taken into account to get the greatest benefitfrom soil testing. Sample Soil at the Right Time . Fields used for production of cultivated crops may be

  3. The soil samples taken in each of the defined areas will be combined to make one composite sample of 10 to 20 cores and each sample should not represent more than 25 acres. Figure 1. Plan on where to sample. 2. Decide on a sampling depth. MSU nutrient recommendations for field crops are based on a soil sample taken at an 8-inch depth. However ...

  4. Feb 22, 2024 · Collecting a soil sample. Using a shovel or soil probe, dig a hole or probe at least 6 inches of soil depth. Place the subsample into a bucket or container. Collect 12-15 subsamples for a field and 4-6 for a garden. For an accurate soil sample, aim to take the same amount of soil from each sampling location. Thoroughly mix the subsamples together.

  5. research calibrations for these soil tests are based on samples collected in the fall or spring. Selecting Sampling Areas Within a Field Sampling Using Soil Maps and Management Zones Each sample should represent a uniform soil area with similar past management. It is recom-mended that each sample represent 10 acres or less.

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  6. Oct 13, 2022 · The soil samples taken in each of the defined areas will be combined to make one composite sample of 10 to 20 cores and each sample should not represent more than 25 acres. 2. Decide on a sampling depth. MSU nutrient recommendations for field crops are based on a soil sample taken at an 8-inch depth.

  7. For long-term fertility management within a given field, it is important to collect soil samples at the same time of year (fall, spring, etc.) to ensure consistency in results because some nutrients fluctuate based on weather and soil conditions (Franzen, 2018). Also, pay attention to tillage and crop residue present when sampling and try to sample in consistent conditions from year to year.