The importance of soil physical properties to crop growth is often under-estimated by producers. Simple tests are needed for demonstration of variations in soil physical conditions due to soil properties and management. Tests that can be used by producers in their fields are preferred. A test of wet aggregate stability of soil is described that can be used in teaching crop producers about soil physical properties. The test requires little equipment and less than 10 minutes of teaching time. The test is also appropriate for use by producers to diagnose problems and monitor trends on their fields.
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Wortmann, C. S., & Burbaker, S. (2004). Soil Aggregation: A Practical Exercise for Crop Producer Education. The Journal of Extension, 42(6), Article 33. https://tigerprints.clemson.edu/joe/vol42/iss6/33