Soils Sampling Taking Soil Samples Purpose-determine need for lime, nitrogen, phosphorus, and potassium Nutrient deficiencies determined Sent to specialized labs to determine drainage, contamination, insects, diseases When to take a soil sample Anytime Early enough to allow adequate time to implement lab recommendations Fall planting-take in spring Spring planting-take in fall Procedures 1. Get soil sample information sheets and cartons. 2. Clean tools and containers. 3. Take one composite sample from each uniform area. 4. Take small cores or slices from the large uniform area. Procedures-continued 5. Take core of slices about 4deep for lawns and 6deep for fields 6. Mix the cores or slices together in a clean bucket and take a sample of about one pint Procedures-continued 7. Complete the sample information sheet and carton information. 8. Draw a map and keep a record of where you sampled and sample numbers. 9. Include the info sheet with the carton and mail or take to lab Interpretation of Soil Test Reports Report provides the results of analysis and suggests a fertilization program, lime application, and other treatments Interpretation Actual nutrients available are reported in ppm and also in levels such as high, low, very low,very high, slightly acid to help the grower understand the report. Interpretation The level of acidity or alkalinity is shown by the pH. 7.2 slightly alkaline 7.0 neutral 6.3 moderately acidic Interpretation Need more help? Contact your local cooperative extension agent, agricultural education teacher or other knowledgeable people who work with soil test reports.