Testing for Potassium: Comparing the Dry Soil Test to the Moist Soil Test
For decades, the common method for testing soil for potassium has been to dry samples prior to analysis. However, research conducted by Iowa State’s Dr. Antonio Mallarino reveals testing moist soils may be more accurate when estimating the availability of potassium for crops and the need for fertilization. This eye-opening research may change how soil tests are conducted in the future, and may ultimately help farmers make better business decisions.
Dry Vs. Moist Soil Test.
Research indicates the Moist Soil Test may show better relationships between soil test results and yield response. Translation? the Moist Soil Test may be more accurate in determining how much potassium is in the soil.
